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Finding the Fourth Proportional to 512,363.60, 768,545.40 and 246,059.90

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Solution

The fourth proportional to 512,363.60, 768,545.40 and 246,059.90 is: 369,089.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,363.60 : 768,545.40 = 246,059.90 : x
  2. Step 2: Convert to fraction form
    512,363.60/768,545.40 = 246,059.90/x
  3. Step 3: Cross multiply
    512,363.60x = 768,545.40 × 246,059.90
  4. Step 4: Simplify right side
    512,363.60x = 189,108,204,269.46
  5. Step 5: Solve for x
    x = 189,108,204,269.46/512,363.60
  6. Step 6: Final answer
    x = 369,089.85

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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.