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Finding the Fourth Proportional to 498,892.53, 688,470.51 and 272,539.65

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Solution

The fourth proportional to 498,892.53, 688,470.51 and 272,539.65 is: 376,104.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,892.53 : 688,470.51 = 272,539.65 : x
  2. Step 2: Convert to fraction form
    498,892.53/688,470.51 = 272,539.65/x
  3. Step 3: Cross multiply
    498,892.53x = 688,470.51 × 272,539.65
  4. Step 4: Simplify right side
    498,892.53x = 187,635,511,830.72
  5. Step 5: Solve for x
    x = 187,635,511,830.72/498,892.53
  6. Step 6: Final answer
    x = 376,104.07

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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.