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Finding the Third Proportional to 678,737 and 1,340,341

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Solution

The third proportional to 678,737 and 1,340,341 is: 2,646,848.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,737 : 1,340,341 = 1,340,341 : x
  2. Step 2: Convert to fraction form
    678,737/1,340,341 = 1,340,341/x
  3. Step 3: Cross multiply
    678,737x = 1,340,341 × 1,340,341
  4. Step 4: Simplify right side
    678,737x = 1,796,513,996,281
  5. Step 5: Solve for x
    x = 1,796,513,996,281/678,737
  6. Step 6: Final answer
    x = 2,646,848.48

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.