Home / 1,990,860.79-2,747,621.13-1,131,550.22

Finding the Fourth Proportional to 1,990,860.79, 2,747,621.13 and 1,131,550.22

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Solution

The fourth proportional to 1,990,860.79, 2,747,621.13 and 1,131,550.22 is: 1,561,671.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,860.79 : 2,747,621.13 = 1,131,550.22 : x
  2. Step 2: Convert to fraction form
    1,990,860.79/2,747,621.13 = 1,131,550.22/x
  3. Step 3: Cross multiply
    1,990,860.79x = 2,747,621.13 × 1,131,550.22
  4. Step 4: Simplify right side
    1,990,860.79x = 3,109,071,291,502.41
  5. Step 5: Solve for x
    x = 3,109,071,291,502.41/1,990,860.79
  6. Step 6: Final answer
    x = 1,561,671.87

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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.