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Finding the Third Proportional to 485,606 and 990,472

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Solution

The third proportional to 485,606 and 990,472 is: 2,020,227.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,606 : 990,472 = 990,472 : x
  2. Step 2: Convert to fraction form
    485,606/990,472 = 990,472/x
  3. Step 3: Cross multiply
    485,606x = 990,472 × 990,472
  4. Step 4: Simplify right side
    485,606x = 981,034,782,784
  5. Step 5: Solve for x
    x = 981,034,782,784/485,606
  6. Step 6: Final answer
    x = 2,020,227.89

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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.