Home / 761,234.28-1,138,695.66-579,947.97

Finding the Fourth Proportional to 761,234.28, 1,138,695.66 and 579,947.97

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Solution

The fourth proportional to 761,234.28, 1,138,695.66 and 579,947.97 is: 867,517.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,234.28 : 1,138,695.66 = 579,947.97 : x
  2. Step 2: Convert to fraction form
    761,234.28/1,138,695.66 = 579,947.97/x
  3. Step 3: Cross multiply
    761,234.28x = 1,138,695.66 × 579,947.97
  4. Step 4: Simplify right side
    761,234.28x = 660,384,236,464.81
  5. Step 5: Solve for x
    x = 660,384,236,464.81/761,234.28
  6. Step 6: Final answer
    x = 867,517.73

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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.