Home / 1,991,846.18-2,987,933.87-839,426.18

Finding the Fourth Proportional to 1,991,846.18, 2,987,933.87 and 839,426.18

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Solution

The fourth proportional to 1,991,846.18, 2,987,933.87 and 839,426.18 is: 1,259,208.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,846.18 : 2,987,933.87 = 839,426.18 : x
  2. Step 2: Convert to fraction form
    1,991,846.18/2,987,933.87 = 839,426.18/x
  3. Step 3: Cross multiply
    1,991,846.18x = 2,987,933.87 × 839,426.18
  4. Step 4: Simplify right side
    1,991,846.18x = 2,508,149,895,449.92
  5. Step 5: Solve for x
    x = 2,508,149,895,449.92/1,991,846.18
  6. Step 6: Final answer
    x = 1,259,208.63

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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.