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Finding the Fourth Proportional to 500.68, 749.92 and 488.44

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Solution

The fourth proportional to 500.68, 749.92 and 488.44 is: 731.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.68 : 749.92 = 488.44 : x
  2. Step 2: Convert to fraction form
    500.68/749.92 = 488.44/x
  3. Step 3: Cross multiply
    500.68x = 749.92 × 488.44
  4. Step 4: Simplify right side
    500.68x = 366,290.92
  5. Step 5: Solve for x
    x = 366,290.92/500.68
  6. Step 6: Final answer
    x = 731.59

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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.