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Finding the Fourth Proportional to 491,630.30, 737,675.07 and 254,843.78

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Solution

The fourth proportional to 491,630.30, 737,675.07 and 254,843.78 is: 382,384.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,630.30 : 737,675.07 = 254,843.78 : x
  2. Step 2: Convert to fraction form
    491,630.30/737,675.07 = 254,843.78/x
  3. Step 3: Cross multiply
    491,630.30x = 737,675.07 × 254,843.78
  4. Step 4: Simplify right side
    491,630.30x = 187,991,903,250.57
  5. Step 5: Solve for x
    x = 187,991,903,250.57/491,630.30
  6. Step 6: Final answer
    x = 382,384.70

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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.