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Finding the Fourth Proportional to 664,448.60, 996,818.70 and 327,650.60

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Solution

The fourth proportional to 664,448.60, 996,818.70 and 327,650.60 is: 491,547.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,448.60 : 996,818.70 = 327,650.60 : x
  2. Step 2: Convert to fraction form
    664,448.60/996,818.70 = 327,650.60/x
  3. Step 3: Cross multiply
    664,448.60x = 996,818.70 × 327,650.60
  4. Step 4: Simplify right side
    664,448.60x = 326,608,245,146.22
  5. Step 5: Solve for x
    x = 326,608,245,146.22/664,448.60
  6. Step 6: Final answer
    x = 491,547.80

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Similar ratio
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1.5x scale

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.