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Finding the Fourth Proportional to 440,486.42, 660,057.04 and 327,620.81

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Solution

The fourth proportional to 440,486.42, 660,057.04 and 327,620.81 is: 490,930.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,486.42 : 660,057.04 = 327,620.81 : x
  2. Step 2: Convert to fraction form
    440,486.42/660,057.04 = 327,620.81/x
  3. Step 3: Cross multiply
    440,486.42x = 660,057.04 × 327,620.81
  4. Step 4: Simplify right side
    440,486.42x = 216,248,422,091.00
  5. Step 5: Solve for x
    x = 216,248,422,091.00/440,486.42
  6. Step 6: Final answer
    x = 490,930.96

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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.