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Finding the Third Proportional to 627.38 and 940.13

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Solution

The third proportional to 627.38 and 940.13 is: 1,408.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.38 : 940.13 = 940.13 : x
  2. Step 2: Convert to fraction form
    627.38/940.13 = 940.13/x
  3. Step 3: Cross multiply
    627.38x = 940.13 × 940.13
  4. Step 4: Simplify right side
    627.38x = 883,835.02
  5. Step 5: Solve for x
    x = 883,835.02/627.38
  6. Step 6: Final answer
    x = 1,408.78

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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.