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Finding the Third Proportional to 485,631 and 990,522

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Solution

The third proportional to 485,631 and 990,522 is: 2,020,327.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,631 : 990,522 = 990,522 : x
  2. Step 2: Convert to fraction form
    485,631/990,522 = 990,522/x
  3. Step 3: Cross multiply
    485,631x = 990,522 × 990,522
  4. Step 4: Simplify right side
    485,631x = 981,133,832,484
  5. Step 5: Solve for x
    x = 981,133,832,484/485,631
  6. Step 6: Final answer
    x = 2,020,327.85

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.