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Finding the Fourth Proportional to 663,654.20, 995,627.10 and 214,298.60

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Solution

The fourth proportional to 663,654.20, 995,627.10 and 214,298.60 is: 321,494.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,654.20 : 995,627.10 = 214,298.60 : x
  2. Step 2: Convert to fraction form
    663,654.20/995,627.10 = 214,298.60/x
  3. Step 3: Cross multiply
    663,654.20x = 995,627.10 × 214,298.60
  4. Step 4: Simplify right side
    663,654.20x = 213,361,493,652.06
  5. Step 5: Solve for x
    x = 213,361,493,652.06/663,654.20
  6. Step 6: Final answer
    x = 321,494.98

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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.