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Finding the Fourth Proportional to 800,662.35, 1,200,994.35 and 327,347.73

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Solution

The fourth proportional to 800,662.35, 1,200,994.35 and 327,347.73 is: 491,021.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,662.35 : 1,200,994.35 = 327,347.73 : x
  2. Step 2: Convert to fraction form
    800,662.35/1,200,994.35 = 327,347.73/x
  3. Step 3: Cross multiply
    800,662.35x = 1,200,994.35 × 327,347.73
  4. Step 4: Simplify right side
    800,662.35x = 393,142,774,215.33
  5. Step 5: Solve for x
    x = 393,142,774,215.33/800,662.35
  6. Step 6: Final answer
    x = 491,021.93

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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.