Finding the Fourth Proportional to 636,337.09, 878,122.75 and 349,854.97
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Solution
The fourth proportional to 636,337.09, 878,122.75 and 349,854.97 is: 482,787.52
Step by Step Solution
- Step 1: Write the proportion equation
636,337.09 : 878,122.75 = 349,854.97 : x - Step 2: Convert to fraction form
636,337.09/878,122.75 = 349,854.97/x - Step 3: Cross multiply
636,337.09x = 878,122.75 × 349,854.97 - Step 4: Simplify right side
636,337.09x = 307,215,608,357.57 - Step 5: Solve for x
x = 307,215,608,357.57/636,337.09 - Step 6: Final answer
x = 482,787.52
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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.