Home / 2,918,131.20-4,375,123.20-1,321,459.20

Finding the Fourth Proportional to 2,918,131.20, 4,375,123.20 and 1,321,459.20

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Solution

The fourth proportional to 2,918,131.20, 4,375,123.20 and 1,321,459.20 is: 1,981,249.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918,131.20 : 4,375,123.20 = 1,321,459.20 : x
  2. Step 2: Convert to fraction form
    2,918,131.20/4,375,123.20 = 1,321,459.20/x
  3. Step 3: Cross multiply
    2,918,131.20x = 4,375,123.20 × 1,321,459.20
  4. Step 4: Simplify right side
    2,918,131.20x = 5,781,546,803,773.44
  5. Step 5: Solve for x
    x = 5,781,546,803,773.44/2,918,131.20
  6. Step 6: Final answer
    x = 1,981,249.78

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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.