Home / 1,990,943.15-2,747,734.79-1,131,632.55

Finding the Fourth Proportional to 1,990,943.15, 2,747,734.79 and 1,131,632.55

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Solution

The fourth proportional to 1,990,943.15, 2,747,734.79 and 1,131,632.55 is: 1,561,785.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,943.15 : 2,747,734.79 = 1,131,632.55 : x
  2. Step 2: Convert to fraction form
    1,990,943.15/2,747,734.79 = 1,131,632.55/x
  3. Step 3: Cross multiply
    1,990,943.15x = 2,747,734.79 × 1,131,632.55
  4. Step 4: Simplify right side
    1,990,943.15x = 3,109,426,121,473.25
  5. Step 5: Solve for x
    x = 3,109,426,121,473.25/1,990,943.15
  6. Step 6: Final answer
    x = 1,561,785.49

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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.