Home / 3,321,879.20-4,979,708.40-2,601,821.60

Finding the Fourth Proportional to 3,321,879.20, 4,979,708.40 and 2,601,821.60

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Solution

The fourth proportional to 3,321,879.20, 4,979,708.40 and 2,601,821.60 is: 3,900,296.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321,879.20 : 4,979,708.40 = 2,601,821.60 : x
  2. Step 2: Convert to fraction form
    3,321,879.20/4,979,708.40 = 2,601,821.60/x
  3. Step 3: Cross multiply
    3,321,879.20x = 4,979,708.40 × 2,601,821.60
  4. Step 4: Simplify right side
    3,321,879.20x = 12,956,312,876,821.44
  5. Step 5: Solve for x
    x = 12,956,312,876,821.44/3,321,879.20
  6. Step 6: Final answer
    x = 3,900,296.22

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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.