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Finding the Fourth Proportional to 512,558.10, 768,837.15 and 475,233.30

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Solution

The fourth proportional to 512,558.10, 768,837.15 and 475,233.30 is: 712,849.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,558.10 : 768,837.15 = 475,233.30 : x
  2. Step 2: Convert to fraction form
    512,558.10/768,837.15 = 475,233.30/x
  3. Step 3: Cross multiply
    512,558.10x = 768,837.15 × 475,233.30
  4. Step 4: Simplify right side
    512,558.10x = 365,377,015,957.10
  5. Step 5: Solve for x
    x = 365,377,015,957.10/512,558.10
  6. Step 6: Final answer
    x = 712,849.95

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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.