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Finding the Fourth Proportional to 440,757.99, 660,579.30 and 216,065.61

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Solution

The fourth proportional to 440,757.99, 660,579.30 and 216,065.61 is: 323,825.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,757.99 : 660,579.30 = 216,065.61 : x
  2. Step 2: Convert to fraction form
    440,757.99/660,579.30 = 216,065.61/x
  3. Step 3: Cross multiply
    440,757.99x = 660,579.30 × 216,065.61
  4. Step 4: Simplify right side
    440,757.99x = 142,728,469,407.87
  5. Step 5: Solve for x
    x = 142,728,469,407.87/440,757.99
  6. Step 6: Final answer
    x = 323,825.03

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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.