Home / 1,080,559.28-1,491,229.20-621,743.57

Finding the Fourth Proportional to 1,080,559.28, 1,491,229.20 and 621,743.57

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Solution

The fourth proportional to 1,080,559.28, 1,491,229.20 and 621,743.57 is: 858,039.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,559.28 : 1,491,229.20 = 621,743.57 : x
  2. Step 2: Convert to fraction form
    1,080,559.28/1,491,229.20 = 621,743.57/x
  3. Step 3: Cross multiply
    1,080,559.28x = 1,491,229.20 × 621,743.57
  4. Step 4: Simplify right side
    1,080,559.28x = 927,162,159,040.10
  5. Step 5: Solve for x
    x = 927,162,159,040.10/1,080,559.28
  6. Step 6: Final answer
    x = 858,039.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.