Home / 1,362,144.62-2,043,219.53-1,278,909.76

Finding the Fourth Proportional to 1,362,144.62, 2,043,219.53 and 1,278,909.76

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Solution

The fourth proportional to 1,362,144.62, 2,043,219.53 and 1,278,909.76 is: 1,918,367.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362,144.62 : 2,043,219.53 = 1,278,909.76 : x
  2. Step 2: Convert to fraction form
    1,362,144.62/2,043,219.53 = 1,278,909.76/x
  3. Step 3: Cross multiply
    1,362,144.62x = 2,043,219.53 × 1,278,909.76
  4. Step 4: Simplify right side
    1,362,144.62x = 2,613,093,400,659.88
  5. Step 5: Solve for x
    x = 2,613,093,400,659.88/1,362,144.62
  6. Step 6: Final answer
    x = 1,918,367.09

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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.