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Finding the Fourth Proportional to 636.57, 951.87 and 453.41

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Solution

The fourth proportional to 636.57, 951.87 and 453.41 is: 677.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.57 : 951.87 = 453.41 : x
  2. Step 2: Convert to fraction form
    636.57/951.87 = 453.41/x
  3. Step 3: Cross multiply
    636.57x = 951.87 × 453.41
  4. Step 4: Simplify right side
    636.57x = 431,582.62
  5. Step 5: Solve for x
    x = 431,582.62/636.57
  6. Step 6: Final answer
    x = 677.98

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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.