Home / 2,278,555.30-3,419,145.15-859,629.70

Finding the Fourth Proportional to 2,278,555.30, 3,419,145.15 and 859,629.70

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Solution

The fourth proportional to 2,278,555.30, 3,419,145.15 and 859,629.70 is: 1,289,939.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278,555.30 : 3,419,145.15 = 859,629.70 : x
  2. Step 2: Convert to fraction form
    2,278,555.30/3,419,145.15 = 859,629.70/x
  3. Step 3: Cross multiply
    2,278,555.30x = 3,419,145.15 × 859,629.70
  4. Step 4: Simplify right side
    2,278,555.30x = 2,939,198,719,550.95
  5. Step 5: Solve for x
    x = 2,939,198,719,550.95/2,278,555.30
  6. Step 6: Final answer
    x = 1,289,939.60

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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.