Home / 1,327,331.20-1,991,142.60-486,065.20

Finding the Fourth Proportional to 1,327,331.20, 1,991,142.60 and 486,065.20

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Solution

The fourth proportional to 1,327,331.20, 1,991,142.60 and 486,065.20 is: 729,151.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,331.20 : 1,991,142.60 = 486,065.20 : x
  2. Step 2: Convert to fraction form
    1,327,331.20/1,991,142.60 = 486,065.20/x
  3. Step 3: Cross multiply
    1,327,331.20x = 1,991,142.60 × 486,065.20
  4. Step 4: Simplify right side
    1,327,331.20x = 967,825,126,097.52
  5. Step 5: Solve for x
    x = 967,825,126,097.52/1,327,331.20
  6. Step 6: Final answer
    x = 729,151.19

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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.