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Finding the Fourth Proportional to 665,008.80, 996,832.80 and 327,530.40

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Solution

The fourth proportional to 665,008.80, 996,832.80 and 327,530.40 is: 490,960.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,008.80 : 996,832.80 = 327,530.40 : x
  2. Step 2: Convert to fraction form
    665,008.80/996,832.80 = 327,530.40/x
  3. Step 3: Cross multiply
    665,008.80x = 996,832.80 × 327,530.40
  4. Step 4: Simplify right side
    665,008.80x = 326,493,045,717.12
  5. Step 5: Solve for x
    x = 326,493,045,717.12/665,008.80
  6. Step 6: Final answer
    x = 490,960.49

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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.