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Finding the Fourth Proportional to 671.61, 927.08 and 601.55

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Solution

The fourth proportional to 671.61, 927.08 and 601.55 is: 830.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.61 : 927.08 = 601.55 : x
  2. Step 2: Convert to fraction form
    671.61/927.08 = 601.55/x
  3. Step 3: Cross multiply
    671.61x = 927.08 × 601.55
  4. Step 4: Simplify right side
    671.61x = 557,684.97
  5. Step 5: Solve for x
    x = 557,684.97/671.61
  6. Step 6: Final answer
    x = 830.37

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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.