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Finding the Fourth Proportional to 630.18, 944.76 and 424.12

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Solution

The fourth proportional to 630.18, 944.76 and 424.12 is: 635.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.18 : 944.76 = 424.12 : x
  2. Step 2: Convert to fraction form
    630.18/944.76 = 424.12/x
  3. Step 3: Cross multiply
    630.18x = 944.76 × 424.12
  4. Step 4: Simplify right side
    630.18x = 400,691.61
  5. Step 5: Solve for x
    x = 400,691.61/630.18
  6. Step 6: Final answer
    x = 635.84

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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.