557.2 is what percent of 1289 - 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 1289 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 1289, so we can write it down as 100%=1289.
4. We know, that x% equals 557.2 of the output value, so we can write it down as x%=557.2.
5. Now we have two simple equations:
1) 100%=1289
2) x%=557.2
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%=1289/557.2
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 557.2 is what percent of 1289

100%/x%=1289/557.2
(100/x)*x=(1289/557.2)*x       - we multiply both sides of the equation by x
100=2.3133524766691*x       - we divide both sides of the equation by (2.3133524766691) to get x
100/2.3133524766691=x
43.22730799069=x
x=43.22730799069

now we have:
557.2 is 43.22730799069% of 1289