689.2 is what percent of 785 - 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 785 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 785, so we can write it down as 100%=785.
4. We know, that x% equals 689.2 of the output value, so we can write it down as x%=689.2.
5. Now we have two simple equations:
1) 100%=785
2) x%=689.2
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%=785/689.2
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 689.2 is what percent of 785

100%/x%=785/689.2
(100/x)*x=(785/689.2)*x       - we multiply both sides of the equation by x
100=1.1390017411492*x       - we divide both sides of the equation by (1.1390017411492) to get x
100/1.1390017411492=x
87.796178343949=x
x=87.796178343949

now we have:
689.2 is 87.796178343949% of 785