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Finding the Fourth Proportional to 665,552.80, 997,963.60 and 327,850.40

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Solution

The fourth proportional to 665,552.80, 997,963.60 and 327,850.40 is: 491,595.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,552.80 : 997,963.60 = 327,850.40 : x
  2. Step 2: Convert to fraction form
    665,552.80/997,963.60 = 327,850.40/x
  3. Step 3: Cross multiply
    665,552.80x = 997,963.60 × 327,850.40
  4. Step 4: Simplify right side
    665,552.80x = 327,182,765,445.44
  5. Step 5: Solve for x
    x = 327,182,765,445.44/665,552.80
  6. Step 6: Final answer
    x = 491,595.51

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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.