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Finding the Fourth Proportional to 499.27, 747.92 and 396.73

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Solution

The fourth proportional to 499.27, 747.92 and 396.73 is: 594.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    499.27 : 747.92 = 396.73 : x
  2. Step 2: Convert to fraction form
    499.27/747.92 = 396.73/x
  3. Step 3: Cross multiply
    499.27x = 747.92 × 396.73
  4. Step 4: Simplify right side
    499.27x = 296,720.32
  5. Step 5: Solve for x
    x = 296,720.32/499.27
  6. Step 6: Final answer
    x = 594.31

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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.