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Finding the Fourth Proportional to 800,330.71, 1,200,498.11 and 327,016.07

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Solution

The fourth proportional to 800,330.71, 1,200,498.11 and 327,016.07 is: 490,524.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,330.71 : 1,200,498.11 = 327,016.07 : x
  2. Step 2: Convert to fraction form
    800,330.71/1,200,498.11 = 327,016.07/x
  3. Step 3: Cross multiply
    800,330.71x = 1,200,498.11 × 327,016.07
  4. Step 4: Simplify right side
    800,330.71x = 392,582,173,974.63
  5. Step 5: Solve for x
    x = 392,582,173,974.63/800,330.71
  6. Step 6: Final answer
    x = 490,524.94

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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.