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Finding the Fourth Proportional to 502,379.10, 752,912.55 and 361,973.70

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Solution

The fourth proportional to 502,379.10, 752,912.55 and 361,973.70 is: 542,487.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,379.10 : 752,912.55 = 361,973.70 : x
  2. Step 2: Convert to fraction form
    502,379.10/752,912.55 = 361,973.70/x
  3. Step 3: Cross multiply
    502,379.10x = 752,912.55 × 361,973.70
  4. Step 4: Simplify right side
    502,379.10x = 272,534,541,499.94
  5. Step 5: Solve for x
    x = 272,534,541,499.94/502,379.10
  6. Step 6: Final answer
    x = 542,487.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.