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Finding the Fourth Proportional to 664,267.60, 995,089.20 and 397,234.90

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Solution

The fourth proportional to 664,267.60, 995,089.20 and 397,234.90 is: 595,067.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,267.60 : 995,089.20 = 397,234.90 : x
  2. Step 2: Convert to fraction form
    664,267.60/995,089.20 = 397,234.90/x
  3. Step 3: Cross multiply
    664,267.60x = 995,089.20 × 397,234.90
  4. Step 4: Simplify right side
    664,267.60x = 395,284,158,853.08
  5. Step 5: Solve for x
    x = 395,284,158,853.08/664,267.60
  6. Step 6: Final answer
    x = 595,067.65

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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.