Home / 2,189,757.42-3,021,426.90-1,222,738.92

Finding the Fourth Proportional to 2,189,757.42, 3,021,426.90 and 1,222,738.92

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Solution

The fourth proportional to 2,189,757.42, 3,021,426.90 and 1,222,738.92 is: 1,687,134.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,757.42 : 3,021,426.90 = 1,222,738.92 : x
  2. Step 2: Convert to fraction form
    2,189,757.42/3,021,426.90 = 1,222,738.92/x
  3. Step 3: Cross multiply
    2,189,757.42x = 3,021,426.90 × 1,222,738.92
  4. Step 4: Simplify right side
    2,189,757.42x = 3,694,416,264,564.95
  5. Step 5: Solve for x
    x = 3,694,416,264,564.95/2,189,757.42
  6. Step 6: Final answer
    x = 1,687,134.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.