Home / 327,836.80-491,755.20-322,921.60

Finding the Fourth Proportional to 327,836.80, 491,755.20 and 322,921.60

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Solution

The fourth proportional to 327,836.80, 491,755.20 and 322,921.60 is: 484,382.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,836.80 : 491,755.20 = 322,921.60 : x
  2. Step 2: Convert to fraction form
    327,836.80/491,755.20 = 322,921.60/x
  3. Step 3: Cross multiply
    327,836.80x = 491,755.20 × 322,921.60
  4. Step 4: Simplify right side
    327,836.80x = 158,798,375,992.32
  5. Step 5: Solve for x
    x = 158,798,375,992.32/327,836.80
  6. Step 6: Final answer
    x = 484,382.40

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1.5x scale

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.