Home / 431,723.20-647,584.80-273,481.60

Finding the Fourth Proportional to 431,723.20, 647,584.80 and 273,481.60

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Solution

The fourth proportional to 431,723.20, 647,584.80 and 273,481.60 is: 410,222.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,723.20 : 647,584.80 = 273,481.60 : x
  2. Step 2: Convert to fraction form
    431,723.20/647,584.80 = 273,481.60/x
  3. Step 3: Cross multiply
    431,723.20x = 647,584.80 × 273,481.60
  4. Step 4: Simplify right side
    431,723.20x = 177,102,527,239.68
  5. Step 5: Solve for x
    x = 177,102,527,239.68/431,723.20
  6. Step 6: Final answer
    x = 410,222.40

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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.