Home / 2,187,125.20-3,280,687.80-1,336,819.60

Finding the Fourth Proportional to 2,187,125.20, 3,280,687.80 and 1,336,819.60

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Solution

The fourth proportional to 2,187,125.20, 3,280,687.80 and 1,336,819.60 is: 2,005,229.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,125.20 : 3,280,687.80 = 1,336,819.60 : x
  2. Step 2: Convert to fraction form
    2,187,125.20/3,280,687.80 = 1,336,819.60/x
  3. Step 3: Cross multiply
    2,187,125.20x = 3,280,687.80 × 1,336,819.60
  4. Step 4: Simplify right side
    2,187,125.20x = 4,385,687,752,520.88
  5. Step 5: Solve for x
    x = 4,385,687,752,520.88/2,187,125.20
  6. Step 6: Final answer
    x = 2,005,229.40

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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.