Home / 3,121,786.40-4,682,679.60-2,002,042.40

Finding the Fourth Proportional to 3,121,786.40, 4,682,679.60 and 2,002,042.40

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Solution

The fourth proportional to 3,121,786.40, 4,682,679.60 and 2,002,042.40 is: 3,003,063.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,786.40 : 4,682,679.60 = 2,002,042.40 : x
  2. Step 2: Convert to fraction form
    3,121,786.40/4,682,679.60 = 2,002,042.40/x
  3. Step 3: Cross multiply
    3,121,786.40x = 4,682,679.60 × 2,002,042.40
  4. Step 4: Simplify right side
    3,121,786.40x = 9,374,923,104,815.04
  5. Step 5: Solve for x
    x = 9,374,923,104,815.04/3,121,786.40
  6. Step 6: Final answer
    x = 3,003,063.60

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Double scale
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Similar ratio
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1.5x scale

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.