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Finding the Third Proportional to 411,940 and 902,612

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Solution

The third proportional to 411,940 and 902,612 is: 1,977,735.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,940 : 902,612 = 902,612 : x
  2. Step 2: Convert to fraction form
    411,940/902,612 = 902,612/x
  3. Step 3: Cross multiply
    411,940x = 902,612 × 902,612
  4. Step 4: Simplify right side
    411,940x = 814,708,422,544
  5. Step 5: Solve for x
    x = 814,708,422,544/411,940
  6. Step 6: Final answer
    x = 1,977,735.65

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.