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Finding the Third Proportional to 426,497 and 840,965

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Solution

The third proportional to 426,497 and 840,965 is: 1,658,211.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,497 : 840,965 = 840,965 : x
  2. Step 2: Convert to fraction form
    426,497/840,965 = 840,965/x
  3. Step 3: Cross multiply
    426,497x = 840,965 × 840,965
  4. Step 4: Simplify right side
    426,497x = 707,222,131,225
  5. Step 5: Solve for x
    x = 707,222,131,225/426,497
  6. Step 6: Final answer
    x = 1,658,211.27

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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.