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Finding the Third Proportional to 724.13 and 1,708.31

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Solution

The third proportional to 724.13 and 1,708.31 is: 4,030.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    724.13 : 1,708.31 = 1,708.31 : x
  2. Step 2: Convert to fraction form
    724.13/1,708.31 = 1,708.31/x
  3. Step 3: Cross multiply
    724.13x = 1,708.31 × 1,708.31
  4. Step 4: Simplify right side
    724.13x = 2,918,331.60
  5. Step 5: Solve for x
    x = 2,918,331.60/724.13
  6. Step 6: Final answer
    x = 4,030.15

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.