Home / 372,255.12-513,481.68-324,622.80

Finding the Fourth Proportional to 372,255.12, 513,481.68 and 324,622.80

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Solution

The fourth proportional to 372,255.12, 513,481.68 and 324,622.80 is: 447,778.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,255.12 : 513,481.68 = 324,622.80 : x
  2. Step 2: Convert to fraction form
    372,255.12/513,481.68 = 324,622.80/x
  3. Step 3: Cross multiply
    372,255.12x = 513,481.68 × 324,622.80
  4. Step 4: Simplify right side
    372,255.12x = 166,687,860,710.30
  5. Step 5: Solve for x
    x = 166,687,860,710.30/372,255.12
  6. Step 6: Final answer
    x = 447,778.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.