Home / 1,186,986.24-1,780,589.76-388,272.96

Finding the Fourth Proportional to 1,186,986.24, 1,780,589.76 and 388,272.96

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Solution

The fourth proportional to 1,186,986.24, 1,780,589.76 and 388,272.96 is: 582,445.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,986.24 : 1,780,589.76 = 388,272.96 : x
  2. Step 2: Convert to fraction form
    1,186,986.24/1,780,589.76 = 388,272.96/x
  3. Step 3: Cross multiply
    1,186,986.24x = 1,780,589.76 × 388,272.96
  4. Step 4: Simplify right side
    1,186,986.24x = 691,354,856,660.89
  5. Step 5: Solve for x
    x = 691,354,856,660.89/1,186,986.24
  6. Step 6: Final answer
    x = 582,445.55

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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.