Home / 1,227,279.60-1,840,919.40-1,120,991.40

Finding the Fourth Proportional to 1,227,279.60, 1,840,919.40 and 1,120,991.40

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Solution

The fourth proportional to 1,227,279.60, 1,840,919.40 and 1,120,991.40 is: 1,681,487.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,279.60 : 1,840,919.40 = 1,120,991.40 : x
  2. Step 2: Convert to fraction form
    1,227,279.60/1,840,919.40 = 1,120,991.40/x
  3. Step 3: Cross multiply
    1,227,279.60x = 1,840,919.40 × 1,120,991.40
  4. Step 4: Simplify right side
    1,227,279.60x = 2,063,654,815,493.16
  5. Step 5: Solve for x
    x = 2,063,654,815,493.16/1,227,279.60
  6. Step 6: Final answer
    x = 1,681,487.10

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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.