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Finding the Third Proportional to 640,998 and 1,367,793

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Solution

The third proportional to 640,998 and 1,367,793 is: 2,918,663.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,998 : 1,367,793 = 1,367,793 : x
  2. Step 2: Convert to fraction form
    640,998/1,367,793 = 1,367,793/x
  3. Step 3: Cross multiply
    640,998x = 1,367,793 × 1,367,793
  4. Step 4: Simplify right side
    640,998x = 1,870,857,690,849
  5. Step 5: Solve for x
    x = 1,870,857,690,849/640,998
  6. Step 6: Final answer
    x = 2,918,663.85

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.