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Finding the Fourth Proportional to 653,677.20, 979,203.60 and 441,100.80

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Solution

The fourth proportional to 653,677.20, 979,203.60 and 441,100.80 is: 660,765.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,677.20 : 979,203.60 = 441,100.80 : x
  2. Step 2: Convert to fraction form
    653,677.20/979,203.60 = 441,100.80/x
  3. Step 3: Cross multiply
    653,677.20x = 979,203.60 × 441,100.80
  4. Step 4: Simplify right side
    653,677.20x = 431,927,491,322.88
  5. Step 5: Solve for x
    x = 431,927,491,322.88/653,677.20
  6. Step 6: Final answer
    x = 660,765.73

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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.