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Finding the Third Proportional to 219,687 and 479,469

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Solution

The third proportional to 219,687 and 479,469 is: 1,046,445.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,687 : 479,469 = 479,469 : x
  2. Step 2: Convert to fraction form
    219,687/479,469 = 479,469/x
  3. Step 3: Cross multiply
    219,687x = 479,469 × 479,469
  4. Step 4: Simplify right side
    219,687x = 229,890,521,961
  5. Step 5: Solve for x
    x = 229,890,521,961/219,687
  6. Step 6: Final answer
    x = 1,046,445.72

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.