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Finding the Fourth Proportional to 887,910.20, 1,330,553.10 and 754,065.80

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Solution

The fourth proportional to 887,910.20, 1,330,553.10 and 754,065.80 is: 1,129,984.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,910.20 : 1,330,553.10 = 754,065.80 : x
  2. Step 2: Convert to fraction form
    887,910.20/1,330,553.10 = 754,065.80/x
  3. Step 3: Cross multiply
    887,910.20x = 1,330,553.10 × 754,065.80
  4. Step 4: Simplify right side
    887,910.20x = 1,003,324,587,793.98
  5. Step 5: Solve for x
    x = 1,003,324,587,793.98/887,910.20
  6. Step 6: Final answer
    x = 1,129,984.30

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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.