Home / 412,278.12-618,816.24-199,195.92

Finding the Fourth Proportional to 412,278.12, 618,816.24 and 199,195.92

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Solution

The fourth proportional to 412,278.12, 618,816.24 and 199,195.92 is: 298,986.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,278.12 : 618,816.24 = 199,195.92 : x
  2. Step 2: Convert to fraction form
    412,278.12/618,816.24 = 199,195.92/x
  3. Step 3: Cross multiply
    412,278.12x = 618,816.24 × 199,195.92
  4. Step 4: Simplify right side
    412,278.12x = 123,265,670,237.74
  5. Step 5: Solve for x
    x = 123,265,670,237.74/412,278.12
  6. Step 6: Final answer
    x = 298,986.69

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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.