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Finding the Fourth Proportional to 489,134.20, 733,336.80 and 252,646.60

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Solution

The fourth proportional to 489,134.20, 733,336.80 and 252,646.60 is: 378,781.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,134.20 : 733,336.80 = 252,646.60 : x
  2. Step 2: Convert to fraction form
    489,134.20/733,336.80 = 252,646.60/x
  3. Step 3: Cross multiply
    489,134.20x = 733,336.80 × 252,646.60
  4. Step 4: Simplify right side
    489,134.20x = 185,275,049,174.88
  5. Step 5: Solve for x
    x = 185,275,049,174.88/489,134.20
  6. Step 6: Final answer
    x = 378,781.63

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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.