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Finding the Fourth Proportional to 451,041.90, 675,843.18 and 330,540.42

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Solution

The fourth proportional to 451,041.90, 675,843.18 and 330,540.42 is: 495,283.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,041.90 : 675,843.18 = 330,540.42 : x
  2. Step 2: Convert to fraction form
    451,041.90/675,843.18 = 330,540.42/x
  3. Step 3: Cross multiply
    451,041.90x = 675,843.18 × 330,540.42
  4. Step 4: Simplify right side
    451,041.90x = 223,393,488,571.34
  5. Step 5: Solve for x
    x = 223,393,488,571.34/451,041.90
  6. Step 6: Final answer
    x = 495,283.23

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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.