Home / 1,191,142.42-1,643,997.97-681,844.79

Finding the Fourth Proportional to 1,191,142.42, 1,643,997.97 and 681,844.79

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Solution

The fourth proportional to 1,191,142.42, 1,643,997.97 and 681,844.79 is: 941,072.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,142.42 : 1,643,997.97 = 681,844.79 : x
  2. Step 2: Convert to fraction form
    1,191,142.42/1,643,997.97 = 681,844.79/x
  3. Step 3: Cross multiply
    1,191,142.42x = 1,643,997.97 × 681,844.79
  4. Step 4: Simplify right side
    1,191,142.42x = 1,120,951,447,205.85
  5. Step 5: Solve for x
    x = 1,120,951,447,205.85/1,191,142.42
  6. Step 6: Final answer
    x = 941,072.56

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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.