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Finding the Third Proportional to 394,171.31 and 608,988.38

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Solution

The third proportional to 394,171.31 and 608,988.38 is: 940,877.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,171.31 : 608,988.38 = 608,988.38 : x
  2. Step 2: Convert to fraction form
    394,171.31/608,988.38 = 608,988.38/x
  3. Step 3: Cross multiply
    394,171.31x = 608,988.38 × 608,988.38
  4. Step 4: Simplify right side
    394,171.31x = 370,866,840,885.14
  5. Step 5: Solve for x
    x = 370,866,840,885.14/394,171.31
  6. Step 6: Final answer
    x = 940,877.30

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.