Home / 852,002.40-1,277,517.60-319,540.80

Finding the Fourth Proportional to 852,002.40, 1,277,517.60 and 319,540.80

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Solution

The fourth proportional to 852,002.40, 1,277,517.60 and 319,540.80 is: 479,128.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,002.40 : 1,277,517.60 = 319,540.80 : x
  2. Step 2: Convert to fraction form
    852,002.40/1,277,517.60 = 319,540.80/x
  3. Step 3: Cross multiply
    852,002.40x = 1,277,517.60 × 319,540.80
  4. Step 4: Simplify right side
    852,002.40x = 408,218,995,918.08
  5. Step 5: Solve for x
    x = 408,218,995,918.08/852,002.40
  6. Step 6: Final answer
    x = 479,128.93

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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.