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Finding the Fourth Proportional to 512,209.80, 768,314.70 and 246,489.30

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Solution

The fourth proportional to 512,209.80, 768,314.70 and 246,489.30 is: 369,733.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,209.80 : 768,314.70 = 246,489.30 : x
  2. Step 2: Convert to fraction form
    512,209.80/768,314.70 = 246,489.30/x
  3. Step 3: Cross multiply
    512,209.80x = 768,314.70 × 246,489.30
  4. Step 4: Simplify right side
    512,209.80x = 189,381,352,582.71
  5. Step 5: Solve for x
    x = 189,381,352,582.71/512,209.80
  6. Step 6: Final answer
    x = 369,733.95

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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.