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Finding the Fourth Proportional to 3,987,447.60, 5,982,553.80 and 1,745,194.80

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Solution

The fourth proportional to 3,987,447.60, 5,982,553.80 and 1,745,194.80 is: 2,618,397.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987,447.60 : 5,982,553.80 = 1,745,194.80 : x
  2. Step 2: Convert to fraction form
    3,987,447.60/5,982,553.80 = 1,745,194.80/x
  3. Step 3: Cross multiply
    3,987,447.60x = 5,982,553.80 × 1,745,194.80
  4. Step 4: Simplify right side
    3,987,447.60x = 10,440,721,782,480.24
  5. Step 5: Solve for x
    x = 10,440,721,782,480.24/3,987,447.60
  6. Step 6: Final answer
    x = 2,618,397.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.