Home / 1,327,517.10-1,991,262.69-380,892.78

Finding the Fourth Proportional to 1,327,517.10, 1,991,262.69 and 380,892.78

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Solution

The fourth proportional to 1,327,517.10, 1,991,262.69 and 380,892.78 is: 571,335.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,517.10 : 1,991,262.69 = 380,892.78 : x
  2. Step 2: Convert to fraction form
    1,327,517.10/1,991,262.69 = 380,892.78/x
  3. Step 3: Cross multiply
    1,327,517.10x = 1,991,262.69 × 380,892.78
  4. Step 4: Simplify right side
    1,327,517.10x = 758,457,581,704.38
  5. Step 5: Solve for x
    x = 758,457,581,704.38/1,327,517.10
  6. Step 6: Final answer
    x = 571,335.45

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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.