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Finding the Fourth Proportional to 542,660.20, 813,879.44 and 205,584.64

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Solution

The fourth proportional to 542,660.20, 813,879.44 and 205,584.64 is: 308,334.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,660.20 : 813,879.44 = 205,584.64 : x
  2. Step 2: Convert to fraction form
    542,660.20/813,879.44 = 205,584.64/x
  3. Step 3: Cross multiply
    542,660.20x = 813,879.44 × 205,584.64
  4. Step 4: Simplify right side
    542,660.20x = 167,321,111,675.80
  5. Step 5: Solve for x
    x = 167,321,111,675.80/542,660.20
  6. Step 6: Final answer
    x = 308,334.96

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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.