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Finding the Third Proportional to 391,874 and 588,339

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Solution

The third proportional to 391,874 and 588,339 is: 883,301.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,874 : 588,339 = 588,339 : x
  2. Step 2: Convert to fraction form
    391,874/588,339 = 588,339/x
  3. Step 3: Cross multiply
    391,874x = 588,339 × 588,339
  4. Step 4: Simplify right side
    391,874x = 346,142,778,921
  5. Step 5: Solve for x
    x = 346,142,778,921/391,874
  6. Step 6: Final answer
    x = 883,301.21

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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.