Home / 492,758.20-739,137.30-324,468.55

Finding the Fourth Proportional to 492,758.20, 739,137.30 and 324,468.55

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Solution

The fourth proportional to 492,758.20, 739,137.30 and 324,468.55 is: 486,702.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,758.20 : 739,137.30 = 324,468.55 : x
  2. Step 2: Convert to fraction form
    492,758.20/739,137.30 = 324,468.55/x
  3. Step 3: Cross multiply
    492,758.20x = 739,137.30 × 324,468.55
  4. Step 4: Simplify right side
    492,758.20x = 239,826,807,981.92
  5. Step 5: Solve for x
    x = 239,826,807,981.92/492,758.20
  6. Step 6: Final answer
    x = 486,702.83

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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.