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Finding the Fourth Proportional to 512,497.37, 768,748.79 and 336,121.30

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Solution

The fourth proportional to 512,497.37, 768,748.79 and 336,121.30 is: 504,183.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,497.37 : 768,748.79 = 336,121.30 : x
  2. Step 2: Convert to fraction form
    512,497.37/768,748.79 = 336,121.30/x
  3. Step 3: Cross multiply
    512,497.37x = 768,748.79 × 336,121.30
  4. Step 4: Simplify right side
    512,497.37x = 258,392,837,143.88
  5. Step 5: Solve for x
    x = 258,392,837,143.88/512,497.37
  6. Step 6: Final answer
    x = 504,183.73

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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.