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Finding the Third Proportional to 317,016 and 431,775

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Solution

The third proportional to 317,016 and 431,775 is: 588,076.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,016 : 431,775 = 431,775 : x
  2. Step 2: Convert to fraction form
    317,016/431,775 = 431,775/x
  3. Step 3: Cross multiply
    317,016x = 431,775 × 431,775
  4. Step 4: Simplify right side
    317,016x = 186,429,650,625
  5. Step 5: Solve for x
    x = 186,429,650,625/317,016
  6. Step 6: Final answer
    x = 588,076.47

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.