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Finding the Fourth Proportional to 664,505.10, 996,903.45 and 327,707.10

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Solution

The fourth proportional to 664,505.10, 996,903.45 and 327,707.10 is: 491,632.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,505.10 : 996,903.45 = 327,707.10 : x
  2. Step 2: Convert to fraction form
    664,505.10/996,903.45 = 327,707.10/x
  3. Step 3: Cross multiply
    664,505.10x = 996,903.45 × 327,707.10
  4. Step 4: Simplify right side
    664,505.10x = 326,692,338,579.50
  5. Step 5: Solve for x
    x = 326,692,338,579.50/664,505.10
  6. Step 6: Final answer
    x = 491,632.55

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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.