Finding the Fourth Proportional to 636,275.09, 878,007.40 and 374,588.84
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Solution
The fourth proportional to 636,275.09, 878,007.40 and 374,588.84 is: 516,901.86
Step by Step Solution
- Step 1: Write the proportion equation
636,275.09 : 878,007.40 = 374,588.84 : x - Step 2: Convert to fraction form
636,275.09/878,007.40 = 374,588.84/x - Step 3: Cross multiply
636,275.09x = 878,007.40 × 374,588.84 - Step 4: Simplify right side
636,275.09x = 328,891,774,735.96 - Step 5: Solve for x
x = 328,891,774,735.96/636,275.09 - Step 6: Final answer
x = 516,901.86
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.