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Finding the Fourth Proportional to 512,497.62, 768,749.18 and 336,121.54

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Solution

The fourth proportional to 512,497.62, 768,749.18 and 336,121.54 is: 504,184.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,497.62 : 768,749.18 = 336,121.54 : x
  2. Step 2: Convert to fraction form
    512,497.62/768,749.18 = 336,121.54/x
  3. Step 3: Cross multiply
    512,497.62x = 768,749.18 × 336,121.54
  4. Step 4: Simplify right side
    512,497.62x = 258,393,154,652.86
  5. Step 5: Solve for x
    x = 258,393,154,652.86/512,497.62
  6. Step 6: Final answer
    x = 504,184.11

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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.