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Finding the Fourth Proportional to 630.49, 944.87 and 476.29

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Solution

The fourth proportional to 630.49, 944.87 and 476.29 is: 713.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.49 : 944.87 = 476.29 : x
  2. Step 2: Convert to fraction form
    630.49/944.87 = 476.29/x
  3. Step 3: Cross multiply
    630.49x = 944.87 × 476.29
  4. Step 4: Simplify right side
    630.49x = 450,025.03
  5. Step 5: Solve for x
    x = 450,025.03/630.49
  6. Step 6: Final answer
    x = 713.78

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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.