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Finding the Fourth Proportional to 665,020.60, 996,874.80 and 327,785.20

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Solution

The fourth proportional to 665,020.60, 996,874.80 and 327,785.20 is: 491,354.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,020.60 : 996,874.80 = 327,785.20 : x
  2. Step 2: Convert to fraction form
    665,020.60/996,874.80 = 327,785.20/x
  3. Step 3: Cross multiply
    665,020.60x = 996,874.80 × 327,785.20
  4. Step 4: Simplify right side
    665,020.60x = 326,760,805,692.96
  5. Step 5: Solve for x
    x = 326,760,805,692.96/665,020.60
  6. Step 6: Final answer
    x = 491,354.41

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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.