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Finding the Fourth Proportional to 665,086.80, 996,949.80 and 327,608.40

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Solution

The fourth proportional to 665,086.80, 996,949.80 and 327,608.40 is: 491,077.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,086.80 : 996,949.80 = 327,608.40 : x
  2. Step 2: Convert to fraction form
    665,086.80/996,949.80 = 327,608.40/x
  3. Step 3: Cross multiply
    665,086.80x = 996,949.80 × 327,608.40
  4. Step 4: Simplify right side
    665,086.80x = 326,609,128,858.32
  5. Step 5: Solve for x
    x = 326,609,128,858.32/665,086.80
  6. Step 6: Final answer
    x = 491,077.45

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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.