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Finding the Third Proportional to 297,227 and 641,830

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Solution

The third proportional to 297,227 and 641,830 is: 1,385,963.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,227 : 641,830 = 641,830 : x
  2. Step 2: Convert to fraction form
    297,227/641,830 = 641,830/x
  3. Step 3: Cross multiply
    297,227x = 641,830 × 641,830
  4. Step 4: Simplify right side
    297,227x = 411,945,748,900
  5. Step 5: Solve for x
    x = 411,945,748,900/297,227
  6. Step 6: Final answer
    x = 1,385,963.42

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.