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Finding the Fourth Proportional to 492,711.90, 739,067.85 and 488,046.30

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Solution

The fourth proportional to 492,711.90, 739,067.85 and 488,046.30 is: 732,069.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,711.90 : 739,067.85 = 488,046.30 : x
  2. Step 2: Convert to fraction form
    492,711.90/739,067.85 = 488,046.30/x
  3. Step 3: Cross multiply
    492,711.90x = 739,067.85 × 488,046.30
  4. Step 4: Simplify right side
    492,711.90x = 360,699,329,641.46
  5. Step 5: Solve for x
    x = 360,699,329,641.46/492,711.90
  6. Step 6: Final answer
    x = 732,069.45

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Similar ratio
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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.