Home / 1,990,839.45-2,747,592.14-1,131,528.88

Finding the Fourth Proportional to 1,990,839.45, 2,747,592.14 and 1,131,528.88

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Solution

The fourth proportional to 1,990,839.45, 2,747,592.14 and 1,131,528.88 is: 1,561,642.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,839.45 : 2,747,592.14 = 1,131,528.88 : x
  2. Step 2: Convert to fraction form
    1,990,839.45/2,747,592.14 = 1,131,528.88/x
  3. Step 3: Cross multiply
    1,990,839.45x = 2,747,592.14 × 1,131,528.88
  4. Step 4: Simplify right side
    1,990,839.45x = 3,108,979,851,213.36
  5. Step 5: Solve for x
    x = 3,108,979,851,213.36/1,990,839.45
  6. Step 6: Final answer
    x = 1,561,642.68

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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.