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Finding the Fourth Proportional to 491,736.60, 737,629.20 and 255,540.60

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Solution

The fourth proportional to 491,736.60, 737,629.20 and 255,540.60 is: 383,323.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,736.60 : 737,629.20 = 255,540.60 : x
  2. Step 2: Convert to fraction form
    491,736.60/737,629.20 = 255,540.60/x
  3. Step 3: Cross multiply
    491,736.60x = 737,629.20 × 255,540.60
  4. Step 4: Simplify right side
    491,736.60x = 188,494,208,345.52
  5. Step 5: Solve for x
    x = 188,494,208,345.52/491,736.60
  6. Step 6: Final answer
    x = 383,323.53

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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.