Home / 3,121,201.20-4,681,801.80-2,412,613.20

Finding the Fourth Proportional to 3,121,201.20, 4,681,801.80 and 2,412,613.20

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Solution

The fourth proportional to 3,121,201.20, 4,681,801.80 and 2,412,613.20 is: 3,618,919.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,201.20 : 4,681,801.80 = 2,412,613.20 : x
  2. Step 2: Convert to fraction form
    3,121,201.20/4,681,801.80 = 2,412,613.20/x
  3. Step 3: Cross multiply
    3,121,201.20x = 4,681,801.80 × 2,412,613.20
  4. Step 4: Simplify right side
    3,121,201.20x = 11,295,376,822,463.76
  5. Step 5: Solve for x
    x = 11,295,376,822,463.76/3,121,201.20
  6. Step 6: Final answer
    x = 3,618,919.80

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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.