Home / 2,278,004.65-3,143,680-1,543,183.66

Finding the Fourth Proportional to 2,278,004.65, 3,143,680 and 1,543,183.66

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Solution

The fourth proportional to 2,278,004.65, 3,143,680 and 1,543,183.66 is: 2,129,616.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278,004.65 : 3,143,680 = 1,543,183.66 : x
  2. Step 2: Convert to fraction form
    2,278,004.65/3,143,680 = 1,543,183.66/x
  3. Step 3: Cross multiply
    2,278,004.65x = 3,143,680 × 1,543,183.66
  4. Step 4: Simplify right side
    2,278,004.65x = 4,851,275,608,268.80
  5. Step 5: Solve for x
    x = 4,851,275,608,268.80/2,278,004.65
  6. Step 6: Final answer
    x = 2,129,616.20

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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.