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Finding the Fourth Proportional to 606.92, 908.90 and 476.60

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Solution

The fourth proportional to 606.92, 908.90 and 476.60 is: 713.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.92 : 908.90 = 476.60 : x
  2. Step 2: Convert to fraction form
    606.92/908.90 = 476.60/x
  3. Step 3: Cross multiply
    606.92x = 908.90 × 476.60
  4. Step 4: Simplify right side
    606.92x = 433,181.78
  5. Step 5: Solve for x
    x = 433,181.78/606.92
  6. Step 6: Final answer
    x = 713.73

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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.