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Finding the Fourth Proportional to 500.90, 691.71 and 473.63

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Solution

The fourth proportional to 500.90, 691.71 and 473.63 is: 654.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.90 : 691.71 = 473.63 : x
  2. Step 2: Convert to fraction form
    500.90/691.71 = 473.63/x
  3. Step 3: Cross multiply
    500.90x = 691.71 × 473.63
  4. Step 4: Simplify right side
    500.90x = 327,614.61
  5. Step 5: Solve for x
    x = 327,614.61/500.90
  6. Step 6: Final answer
    x = 654.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.