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Finding the Fourth Proportional to 492,351.92, 738,527.88 and 380,195.72

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Solution

The fourth proportional to 492,351.92, 738,527.88 and 380,195.72 is: 570,293.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,351.92 : 738,527.88 = 380,195.72 : x
  2. Step 2: Convert to fraction form
    492,351.92/738,527.88 = 380,195.72/x
  3. Step 3: Cross multiply
    492,351.92x = 738,527.88 × 380,195.72
  4. Step 4: Simplify right side
    492,351.92x = 280,785,139,076.67
  5. Step 5: Solve for x
    x = 280,785,139,076.67/492,351.92
  6. Step 6: Final answer
    x = 570,293.58

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Similar ratio
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1.5x scale

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.