Home / 1,990,874-2,747,475.24-1,131,470.48

Finding the Fourth Proportional to 1,990,874, 2,747,475.24 and 1,131,470.48

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Solution

The fourth proportional to 1,990,874, 2,747,475.24 and 1,131,470.48 is: 1,561,468.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,874 : 2,747,475.24 = 1,131,470.48 : x
  2. Step 2: Convert to fraction form
    1,990,874/2,747,475.24 = 1,131,470.48/x
  3. Step 3: Cross multiply
    1,990,874x = 2,747,475.24 × 1,131,470.48
  4. Step 4: Simplify right side
    1,990,874x = 3,108,687,128,590.92
  5. Step 5: Solve for x
    x = 3,108,687,128,590.92/1,990,874
  6. Step 6: Final answer
    x = 1,561,468.55

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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.