Home / 1,080,760.32-1,491,634.44-628,313.76

Finding the Fourth Proportional to 1,080,760.32, 1,491,634.44 and 628,313.76

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Solution

The fourth proportional to 1,080,760.32, 1,491,634.44 and 628,313.76 is: 867,180.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,760.32 : 1,491,634.44 = 628,313.76 : x
  2. Step 2: Convert to fraction form
    1,080,760.32/1,491,634.44 = 628,313.76/x
  3. Step 3: Cross multiply
    1,080,760.32x = 1,491,634.44 × 628,313.76
  4. Step 4: Simplify right side
    1,080,760.32x = 937,214,443,541.89
  5. Step 5: Solve for x
    x = 937,214,443,541.89/1,080,760.32
  6. Step 6: Final answer
    x = 867,180.66

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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.