Home / 3,418,280.80-5,121,200.40-2,783,759.20

Finding the Fourth Proportional to 3,418,280.80, 5,121,200.40 and 2,783,759.20

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Solution

The fourth proportional to 3,418,280.80, 5,121,200.40 and 2,783,759.20 is: 4,170,572.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418,280.80 : 5,121,200.40 = 2,783,759.20 : x
  2. Step 2: Convert to fraction form
    3,418,280.80/5,121,200.40 = 2,783,759.20/x
  3. Step 3: Cross multiply
    3,418,280.80x = 5,121,200.40 × 2,783,759.20
  4. Step 4: Simplify right side
    3,418,280.80x = 14,256,188,728,543.68
  5. Step 5: Solve for x
    x = 14,256,188,728,543.68/3,418,280.80
  6. Step 6: Final answer
    x = 4,170,572.74

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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.