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Finding the Third Proportional to 397,451.25 and 861,546.38

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Solution

The third proportional to 397,451.25 and 861,546.38 is: 1,867,555.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,451.25 : 861,546.38 = 861,546.38 : x
  2. Step 2: Convert to fraction form
    397,451.25/861,546.38 = 861,546.38/x
  3. Step 3: Cross multiply
    397,451.25x = 861,546.38 × 861,546.38
  4. Step 4: Simplify right side
    397,451.25x = 742,262,156,275.64
  5. Step 5: Solve for x
    x = 742,262,156,275.64/397,451.25
  6. Step 6: Final answer
    x = 1,867,555.22

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.