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Finding the Third Proportional to 987,338 and 2,153,080

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Solution

The third proportional to 987,338 and 2,153,080 is: 4,695,204.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,338 : 2,153,080 = 2,153,080 : x
  2. Step 2: Convert to fraction form
    987,338/2,153,080 = 2,153,080/x
  3. Step 3: Cross multiply
    987,338x = 2,153,080 × 2,153,080
  4. Step 4: Simplify right side
    987,338x = 4,635,753,486,400
  5. Step 5: Solve for x
    x = 4,635,753,486,400/987,338
  6. Step 6: Final answer
    x = 4,695,204.16

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.