Home / 667,947.40-1,002,042.60-218,543.20

Finding the Fourth Proportional to 667,947.40, 1,002,042.60 and 218,543.20

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Solution

The fourth proportional to 667,947.40, 1,002,042.60 and 218,543.20 is: 327,854.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,947.40 : 1,002,042.60 = 218,543.20 : x
  2. Step 2: Convert to fraction form
    667,947.40/1,002,042.60 = 218,543.20/x
  3. Step 3: Cross multiply
    667,947.40x = 1,002,042.60 × 218,543.20
  4. Step 4: Simplify right side
    667,947.40x = 218,989,596,340.32
  5. Step 5: Solve for x
    x = 218,989,596,340.32/667,947.40
  6. Step 6: Final answer
    x = 327,854.55

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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.