Finding the Fourth Proportional to 513,731.97, 708,951.29 and 284,305.95
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Solution
The fourth proportional to 513,731.97, 708,951.29 and 284,305.95 is: 392,342.86
Step by Step Solution
- Step 1: Write the proportion equation
513,731.97 : 708,951.29 = 284,305.95 : x - Step 2: Convert to fraction form
513,731.97/708,951.29 = 284,305.95/x - Step 3: Cross multiply
513,731.97x = 708,951.29 × 284,305.95 - Step 4: Simplify right side
513,731.97x = 201,559,068,585.65 - Step 5: Solve for x
x = 201,559,068,585.65/513,731.97 - Step 6: Final answer
x = 392,342.86
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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.