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Finding the Fourth Proportional to 664,224.30, 996,336.45 and 327,316.95

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Solution

The fourth proportional to 664,224.30, 996,336.45 and 327,316.95 is: 490,975.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,224.30 : 996,336.45 = 327,316.95 : x
  2. Step 2: Convert to fraction form
    664,224.30/996,336.45 = 327,316.95/x
  3. Step 3: Cross multiply
    664,224.30x = 996,336.45 × 327,316.95
  4. Step 4: Simplify right side
    664,224.30x = 326,117,807,987.83
  5. Step 5: Solve for x
    x = 326,117,807,987.83/664,224.30
  6. Step 6: Final answer
    x = 490,975.43

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Double scale
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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.