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Finding the Fourth Proportional to 664,519.80, 996,909.30 and 265,092.60

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Solution

The fourth proportional to 664,519.80, 996,909.30 and 265,092.60 is: 397,690.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,519.80 : 996,909.30 = 265,092.60 : x
  2. Step 2: Convert to fraction form
    664,519.80/996,909.30 = 265,092.60/x
  3. Step 3: Cross multiply
    664,519.80x = 996,909.30 × 265,092.60
  4. Step 4: Simplify right side
    664,519.80x = 264,273,278,301.18
  5. Step 5: Solve for x
    x = 264,273,278,301.18/664,519.80
  6. Step 6: Final answer
    x = 397,690.60

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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.