Home / 2,589,075.80-3,882,447.30-991,107.80

Finding the Fourth Proportional to 2,589,075.80, 3,882,447.30 and 991,107.80

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Solution

The fourth proportional to 2,589,075.80, 3,882,447.30 and 991,107.80 is: 1,486,215.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,589,075.80 : 3,882,447.30 = 991,107.80 : x
  2. Step 2: Convert to fraction form
    2,589,075.80/3,882,447.30 = 991,107.80/x
  3. Step 3: Cross multiply
    2,589,075.80x = 3,882,447.30 × 991,107.80
  4. Step 4: Simplify right side
    2,589,075.80x = 3,847,923,802,118.94
  5. Step 5: Solve for x
    x = 3,847,923,802,118.94/2,589,075.80
  6. Step 6: Final answer
    x = 1,486,215.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.