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Finding the Fourth Proportional to 671.27, 927.06 and 461.99

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Solution

The fourth proportional to 671.27, 927.06 and 461.99 is: 638.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.27 : 927.06 = 461.99 : x
  2. Step 2: Convert to fraction form
    671.27/927.06 = 461.99/x
  3. Step 3: Cross multiply
    671.27x = 927.06 × 461.99
  4. Step 4: Simplify right side
    671.27x = 428,293.60
  5. Step 5: Solve for x
    x = 428,293.60/671.27
  6. Step 6: Final answer
    x = 638.03

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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.