What is 1290 percent of 300000 - 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 300000 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 300000 is 100%, so we can write it down as 300000=100%.
4. We know, that x is 1290% of the output value, so we can write it down as x=1290%.
5. Now we have two simple equations:
1) 300000=100%
2) x=1290%
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:
300000/x=100%/1290%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 1290% of 300000

300000/x=100/1290
(300000/x)*x=(100/1290)*x       - we multiply both sides of the equation by x
300000=0.077519379844961*x       - we divide both sides of the equation by (0.077519379844961) to get x
300000/0.077519379844961=x
3870000=x
x=3870000

now we have:
1290% of 300000=3870000