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Finding the Third Proportional to 485,624 and 990,526

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Solution

The third proportional to 485,624 and 990,526 is: 2,020,373.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,624 : 990,526 = 990,526 : x
  2. Step 2: Convert to fraction form
    485,624/990,526 = 990,526/x
  3. Step 3: Cross multiply
    485,624x = 990,526 × 990,526
  4. Step 4: Simplify right side
    485,624x = 981,141,756,676
  5. Step 5: Solve for x
    x = 981,141,756,676/485,624
  6. Step 6: Final answer
    x = 2,020,373.29

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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.