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Finding the Fourth Proportional to 665,016.80, 996,844.80 and 327,538.40

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Solution

The fourth proportional to 665,016.80, 996,844.80 and 327,538.40 is: 490,972.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,016.80 : 996,844.80 = 327,538.40 : x
  2. Step 2: Convert to fraction form
    665,016.80/996,844.80 = 327,538.40/x
  3. Step 3: Cross multiply
    665,016.80x = 996,844.80 × 327,538.40
  4. Step 4: Simplify right side
    665,016.80x = 326,504,950,840.32
  5. Step 5: Solve for x
    x = 326,504,950,840.32/665,016.80
  6. Step 6: Final answer
    x = 490,972.48

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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.