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Finding the Fourth Proportional to 491,738.60, 737,632.20 and 255,542.60

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Solution

The fourth proportional to 491,738.60, 737,632.20 and 255,542.60 is: 383,326.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,738.60 : 737,632.20 = 255,542.60 : x
  2. Step 2: Convert to fraction form
    491,738.60/737,632.20 = 255,542.60/x
  3. Step 3: Cross multiply
    491,738.60x = 737,632.20 × 255,542.60
  4. Step 4: Simplify right side
    491,738.60x = 188,496,450,231.72
  5. Step 5: Solve for x
    x = 188,496,450,231.72/491,738.60
  6. Step 6: Final answer
    x = 383,326.53

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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.