Finding the Fourth Proportional to 515,382.29, 711,203.57 and 285,937.14
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Solution
The fourth proportional to 515,382.29, 711,203.57 and 285,937.14 is: 394,579.94
Step by Step Solution
- Step 1: Write the proportion equation
515,382.29 : 711,203.57 = 285,937.14 : x - Step 2: Convert to fraction form
515,382.29/711,203.57 = 285,937.14/x - Step 3: Cross multiply
515,382.29x = 711,203.57 × 285,937.14 - Step 4: Simplify right side
515,382.29x = 203,359,513,333.90 - Step 5: Solve for x
x = 203,359,513,333.90/515,382.29 - Step 6: Final answer
x = 394,579.94
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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.