Home / 1,381,995.88-2,073,168.84-540,438.28

Finding the Fourth Proportional to 1,381,995.88, 2,073,168.84 and 540,438.28

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Solution

The fourth proportional to 1,381,995.88, 2,073,168.84 and 540,438.28 is: 810,725.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,995.88 : 2,073,168.84 = 540,438.28 : x
  2. Step 2: Convert to fraction form
    1,381,995.88/2,073,168.84 = 540,438.28/x
  3. Step 3: Cross multiply
    1,381,995.88x = 2,073,168.84 × 540,438.28
  4. Step 4: Simplify right side
    1,381,995.88x = 1,120,419,802,039.20
  5. Step 5: Solve for x
    x = 1,120,419,802,039.20/1,381,995.88
  6. Step 6: Final answer
    x = 810,725.86

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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.