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Finding the Fourth Proportional to 664,284.60, 995,114.70 and 397,251.90

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Solution

The fourth proportional to 664,284.60, 995,114.70 and 397,251.90 is: 595,093.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,284.60 : 995,114.70 = 397,251.90 : x
  2. Step 2: Convert to fraction form
    664,284.60/995,114.70 = 397,251.90/x
  3. Step 3: Cross multiply
    664,284.60x = 995,114.70 × 397,251.90
  4. Step 4: Simplify right side
    664,284.60x = 395,311,205,292.93
  5. Step 5: Solve for x
    x = 395,311,205,292.93/664,284.60
  6. Step 6: Final answer
    x = 595,093.14

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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.