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Finding the Third Proportional to 511.31 and 739.97

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Solution

The third proportional to 511.31 and 739.97 is: 1,070.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.31 : 739.97 = 739.97 : x
  2. Step 2: Convert to fraction form
    511.31/739.97 = 739.97/x
  3. Step 3: Cross multiply
    511.31x = 739.97 × 739.97
  4. Step 4: Simplify right side
    511.31x = 547,553.75
  5. Step 5: Solve for x
    x = 547,553.75/511.31
  6. Step 6: Final answer
    x = 1,070.88

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These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.