Home / 3,131,383.20-4,321,235.70-1,842,306.72

Finding the Fourth Proportional to 3,131,383.20, 4,321,235.70 and 1,842,306.72

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Solution

The fourth proportional to 3,131,383.20, 4,321,235.70 and 1,842,306.72 is: 2,542,340.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131,383.20 : 4,321,235.70 = 1,842,306.72 : x
  2. Step 2: Convert to fraction form
    3,131,383.20/4,321,235.70 = 1,842,306.72/x
  3. Step 3: Cross multiply
    3,131,383.20x = 4,321,235.70 × 1,842,306.72
  4. Step 4: Simplify right side
    3,131,383.20x = 7,961,041,568,813.90
  5. Step 5: Solve for x
    x = 7,961,041,568,813.90/3,131,383.20
  6. Step 6: Final answer
    x = 2,542,340.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.