Home / 852,234.40-1,278,351.60-319,772.80

Finding the Fourth Proportional to 852,234.40, 1,278,351.60 and 319,772.80

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Solution

The fourth proportional to 852,234.40, 1,278,351.60 and 319,772.80 is: 479,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,234.40 : 1,278,351.60 = 319,772.80 : x
  2. Step 2: Convert to fraction form
    852,234.40/1,278,351.60 = 319,772.80/x
  3. Step 3: Cross multiply
    852,234.40x = 1,278,351.60 × 319,772.80
  4. Step 4: Simplify right side
    852,234.40x = 408,782,070,516.48
  5. Step 5: Solve for x
    x = 408,782,070,516.48/852,234.40
  6. Step 6: Final answer
    x = 479,659.20

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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.