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Finding the Fourth Proportional to 395,843.20, 593,764.80 and 263,132.80

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Solution

The fourth proportional to 395,843.20, 593,764.80 and 263,132.80 is: 394,699.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,843.20 : 593,764.80 = 263,132.80 : x
  2. Step 2: Convert to fraction form
    395,843.20/593,764.80 = 263,132.80/x
  3. Step 3: Cross multiply
    395,843.20x = 593,764.80 × 263,132.80
  4. Step 4: Simplify right side
    395,843.20x = 156,238,994,365.44
  5. Step 5: Solve for x
    x = 156,238,994,365.44/395,843.20
  6. Step 6: Final answer
    x = 394,699.20

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Similar ratio
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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.