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Finding the Fourth Proportional to 627.41, 937.66 and 578.15

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Solution

The fourth proportional to 627.41, 937.66 and 578.15 is: 864.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.41 : 937.66 = 578.15 : x
  2. Step 2: Convert to fraction form
    627.41/937.66 = 578.15/x
  3. Step 3: Cross multiply
    627.41x = 937.66 × 578.15
  4. Step 4: Simplify right side
    627.41x = 542,108.13
  5. Step 5: Solve for x
    x = 542,108.13/627.41
  6. Step 6: Final answer
    x = 864.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.