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Finding the Fourth Proportional to 492,349.92, 738,524.88 and 380,193.72

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Solution

The fourth proportional to 492,349.92, 738,524.88 and 380,193.72 is: 570,290.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,349.92 : 738,524.88 = 380,193.72 : x
  2. Step 2: Convert to fraction form
    492,349.92/738,524.88 = 380,193.72/x
  3. Step 3: Cross multiply
    492,349.92x = 738,524.88 × 380,193.72
  4. Step 4: Simplify right side
    492,349.92x = 280,782,521,439.75
  5. Step 5: Solve for x
    x = 280,782,521,439.75/492,349.92
  6. Step 6: Final answer
    x = 570,290.58

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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.