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Finding the Fourth Proportional to 492,786.60, 739,179.90 and 193,276.95

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Solution

The fourth proportional to 492,786.60, 739,179.90 and 193,276.95 is: 289,915.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,786.60 : 739,179.90 = 193,276.95 : x
  2. Step 2: Convert to fraction form
    492,786.60/739,179.90 = 193,276.95/x
  3. Step 3: Cross multiply
    492,786.60x = 739,179.90 × 193,276.95
  4. Step 4: Simplify right side
    492,786.60x = 142,866,436,573.31
  5. Step 5: Solve for x
    x = 142,866,436,573.31/492,786.60
  6. Step 6: Final answer
    x = 289,915.43

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Similar ratio
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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.