Home / 2,192,176.80-3,287,487.60-772,279.20

Finding the Fourth Proportional to 2,192,176.80, 3,287,487.60 and 772,279.20

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Solution

The fourth proportional to 2,192,176.80, 3,287,487.60 and 772,279.20 is: 1,158,144.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192,176.80 : 3,287,487.60 = 772,279.20 : x
  2. Step 2: Convert to fraction form
    2,192,176.80/3,287,487.60 = 772,279.20/x
  3. Step 3: Cross multiply
    2,192,176.80x = 3,287,487.60 × 772,279.20
  4. Step 4: Simplify right side
    2,192,176.80x = 2,538,858,293,737.92
  5. Step 5: Solve for x
    x = 2,538,858,293,737.92/2,192,176.80
  6. Step 6: Final answer
    x = 1,158,144.86

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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.