Home / 3,415,221.20-5,121,276.60-1,520,987.60

Finding the Fourth Proportional to 3,415,221.20, 5,121,276.60 and 1,520,987.60

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Solution

The fourth proportional to 3,415,221.20, 5,121,276.60 and 1,520,987.60 is: 2,280,788.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415,221.20 : 5,121,276.60 = 1,520,987.60 : x
  2. Step 2: Convert to fraction form
    3,415,221.20/5,121,276.60 = 1,520,987.60/x
  3. Step 3: Cross multiply
    3,415,221.20x = 5,121,276.60 × 1,520,987.60
  4. Step 4: Simplify right side
    3,415,221.20x = 7,789,398,204,770.16
  5. Step 5: Solve for x
    x = 7,789,398,204,770.16/3,415,221.20
  6. Step 6: Final answer
    x = 2,280,788.78

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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.