Home / 1,080,742.32-1,491,609.60-628,295.76

Finding the Fourth Proportional to 1,080,742.32, 1,491,609.60 and 628,295.76

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Solution

The fourth proportional to 1,080,742.32, 1,491,609.60 and 628,295.76 is: 867,155.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,742.32 : 1,491,609.60 = 628,295.76 : x
  2. Step 2: Convert to fraction form
    1,080,742.32/1,491,609.60 = 628,295.76/x
  3. Step 3: Cross multiply
    1,080,742.32x = 1,491,609.60 × 628,295.76
  4. Step 4: Simplify right side
    1,080,742.32x = 937,171,987,255.30
  5. Step 5: Solve for x
    x = 937,171,987,255.30/1,080,742.32
  6. Step 6: Final answer
    x = 867,155.81

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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.