Home / 1,359,909.20-2,039,863.80-1,212,942.80

Finding the Fourth Proportional to 1,359,909.20, 2,039,863.80 and 1,212,942.80

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Solution

The fourth proportional to 1,359,909.20, 2,039,863.80 and 1,212,942.80 is: 1,819,414.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359,909.20 : 2,039,863.80 = 1,212,942.80 : x
  2. Step 2: Convert to fraction form
    1,359,909.20/2,039,863.80 = 1,212,942.80/x
  3. Step 3: Cross multiply
    1,359,909.20x = 2,039,863.80 × 1,212,942.80
  4. Step 4: Simplify right side
    1,359,909.20x = 2,474,238,109,190.64
  5. Step 5: Solve for x
    x = 2,474,238,109,190.64/1,359,909.20
  6. Step 6: Final answer
    x = 1,819,414.20

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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.