387.6 is what percent of 1420 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 1420 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 1420, so we can write it down as 100%=1420.
4. We know, that x% equals 387.6 of the output value, so we can write it down as x%=387.6.
5. Now we have two simple equations:
1) 100%=1420
2) x%=387.6
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=1420/387.6
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 387.6 is what percent of 1420

100%/x%=1420/387.6
(100/x)*x=(1420/387.6)*x       - we multiply both sides of the equation by x
100=3.6635706914345*x       - we divide both sides of the equation by (3.6635706914345) to get x
100/3.6635706914345=x
27.295774647887=x
x=27.295774647887

now we have:
387.6 is 27.295774647887% of 1420