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Finding the Fourth Proportional to 512,496.87, 768,748.04 and 336,120.80

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Solution

The fourth proportional to 512,496.87, 768,748.04 and 336,120.80 is: 504,182.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,496.87 : 768,748.04 = 336,120.80 : x
  2. Step 2: Convert to fraction form
    512,496.87/768,748.04 = 336,120.80/x
  3. Step 3: Cross multiply
    512,496.87x = 768,748.04 × 336,120.80
  4. Step 4: Simplify right side
    512,496.87x = 258,392,200,678.89
  5. Step 5: Solve for x
    x = 258,392,200,678.89/512,496.87
  6. Step 6: Final answer
    x = 504,182.98

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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.