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Finding the Fourth Proportional to 465,305.88, 641,958.60 and 304,255.20

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Solution

The fourth proportional to 465,305.88, 641,958.60 and 304,255.20 is: 419,765.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,305.88 : 641,958.60 = 304,255.20 : x
  2. Step 2: Convert to fraction form
    465,305.88/641,958.60 = 304,255.20/x
  3. Step 3: Cross multiply
    465,305.88x = 641,958.60 × 304,255.20
  4. Step 4: Simplify right side
    465,305.88x = 195,319,242,234.72
  5. Step 5: Solve for x
    x = 195,319,242,234.72/465,305.88
  6. Step 6: Final answer
    x = 419,765.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.