Home / 1,324,910.80-1,987,366.20-327,638.80

Finding the Fourth Proportional to 1,324,910.80, 1,987,366.20 and 327,638.80

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Solution

The fourth proportional to 1,324,910.80, 1,987,366.20 and 327,638.80 is: 491,458.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,910.80 : 1,987,366.20 = 327,638.80 : x
  2. Step 2: Convert to fraction form
    1,324,910.80/1,987,366.20 = 327,638.80/x
  3. Step 3: Cross multiply
    1,324,910.80x = 1,987,366.20 × 327,638.80
  4. Step 4: Simplify right side
    1,324,910.80x = 651,138,276,928.56
  5. Step 5: Solve for x
    x = 651,138,276,928.56/1,324,910.80
  6. Step 6: Final answer
    x = 491,458.20

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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.