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Finding the Fourth Proportional to 633.87, 951.15 and 480.75

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Solution

The fourth proportional to 633.87, 951.15 and 480.75 is: 721.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.87 : 951.15 = 480.75 : x
  2. Step 2: Convert to fraction form
    633.87/951.15 = 480.75/x
  3. Step 3: Cross multiply
    633.87x = 951.15 × 480.75
  4. Step 4: Simplify right side
    633.87x = 457,265.36
  5. Step 5: Solve for x
    x = 457,265.36/633.87
  6. Step 6: Final answer
    x = 721.39

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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.