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Finding the Third Proportional to 485,607 and 990,473

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Solution

The third proportional to 485,607 and 990,473 is: 2,020,227.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,607 : 990,473 = 990,473 : x
  2. Step 2: Convert to fraction form
    485,607/990,473 = 990,473/x
  3. Step 3: Cross multiply
    485,607x = 990,473 × 990,473
  4. Step 4: Simplify right side
    485,607x = 981,036,763,729
  5. Step 5: Solve for x
    x = 981,036,763,729/485,607
  6. Step 6: Final answer
    x = 2,020,227.81

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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.