Home / 2,592,139.20-3,889,375.20-1,243,780.80

Finding the Fourth Proportional to 2,592,139.20, 3,889,375.20 and 1,243,780.80

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Solution

The fourth proportional to 2,592,139.20, 3,889,375.20 and 1,243,780.80 is: 1,866,230.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,592,139.20 : 3,889,375.20 = 1,243,780.80 : x
  2. Step 2: Convert to fraction form
    2,592,139.20/3,889,375.20 = 1,243,780.80/x
  3. Step 3: Cross multiply
    2,592,139.20x = 3,889,375.20 × 1,243,780.80
  4. Step 4: Simplify right side
    2,592,139.20x = 4,837,530,197,756.16
  5. Step 5: Solve for x
    x = 4,837,530,197,756.16/2,592,139.20
  6. Step 6: Final answer
    x = 1,866,230.87

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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.