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Finding the Third Proportional to 485,455.78 and 1,022,101.03

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Solution

The third proportional to 485,455.78 and 1,022,101.03 is: 2,151,978.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,455.78 : 1,022,101.03 = 1,022,101.03 : x
  2. Step 2: Convert to fraction form
    485,455.78/1,022,101.03 = 1,022,101.03/x
  3. Step 3: Cross multiply
    485,455.78x = 1,022,101.03 × 1,022,101.03
  4. Step 4: Simplify right side
    485,455.78x = 1,044,690,518,082.31
  5. Step 5: Solve for x
    x = 1,044,690,518,082.31/485,455.78
  6. Step 6: Final answer
    x = 2,151,978.74

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.