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Finding the Fourth Proportional to 511,992.60, 768,620.70 and 322,452.60

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Solution

The fourth proportional to 511,992.60, 768,620.70 and 322,452.60 is: 484,076.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,992.60 : 768,620.70 = 322,452.60 : x
  2. Step 2: Convert to fraction form
    511,992.60/768,620.70 = 322,452.60/x
  3. Step 3: Cross multiply
    511,992.60x = 768,620.70 × 322,452.60
  4. Step 4: Simplify right side
    511,992.60x = 247,843,743,128.82
  5. Step 5: Solve for x
    x = 247,843,743,128.82/511,992.60
  6. Step 6: Final answer
    x = 484,076.81

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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.