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Finding the Third Proportional to 297,081 and 641,518

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Solution

The third proportional to 297,081 and 641,518 is: 1,385,296.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,081 : 641,518 = 641,518 : x
  2. Step 2: Convert to fraction form
    297,081/641,518 = 641,518/x
  3. Step 3: Cross multiply
    297,081x = 641,518 × 641,518
  4. Step 4: Simplify right side
    297,081x = 411,545,344,324
  5. Step 5: Solve for x
    x = 411,545,344,324/297,081
  6. Step 6: Final answer
    x = 1,385,296.75

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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.