Home / 2,670,037.20-4,002,334.20-1,320,123.60

Finding the Fourth Proportional to 2,670,037.20, 4,002,334.20 and 1,320,123.60

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Solution

The fourth proportional to 2,670,037.20, 4,002,334.20 and 1,320,123.60 is: 1,978,839.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,670,037.20 : 4,002,334.20 = 1,320,123.60 : x
  2. Step 2: Convert to fraction form
    2,670,037.20/4,002,334.20 = 1,320,123.60/x
  3. Step 3: Cross multiply
    2,670,037.20x = 4,002,334.20 × 1,320,123.60
  4. Step 4: Simplify right side
    2,670,037.20x = 5,283,575,832,507.12
  5. Step 5: Solve for x
    x = 5,283,575,832,507.12/2,670,037.20
  6. Step 6: Final answer
    x = 1,978,839.78

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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.