Home / 327,811.60-491,717.40-324,701.20

Finding the Fourth Proportional to 327,811.60, 491,717.40 and 324,701.20

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Solution

The fourth proportional to 327,811.60, 491,717.40 and 324,701.20 is: 487,051.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,811.60 : 491,717.40 = 324,701.20 : x
  2. Step 2: Convert to fraction form
    327,811.60/491,717.40 = 324,701.20/x
  3. Step 3: Cross multiply
    327,811.60x = 491,717.40 × 324,701.20
  4. Step 4: Simplify right side
    327,811.60x = 159,661,229,840.88
  5. Step 5: Solve for x
    x = 159,661,229,840.88/327,811.60
  6. Step 6: Final answer
    x = 487,051.80

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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.