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Finding the Fourth Proportional to 475.02, 710.86 and 410.78

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Solution

The fourth proportional to 475.02, 710.86 and 410.78 is: 614.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    475.02 : 710.86 = 410.78 : x
  2. Step 2: Convert to fraction form
    475.02/710.86 = 410.78/x
  3. Step 3: Cross multiply
    475.02x = 710.86 × 410.78
  4. Step 4: Simplify right side
    475.02x = 292,001.46
  5. Step 5: Solve for x
    x = 292,001.46/475.02
  6. Step 6: Final answer
    x = 614.71

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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.