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Finding the Fourth Proportional to 664,351.58, 995,028.96 and 308,616.96

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Solution

The fourth proportional to 664,351.58, 995,028.96 and 308,616.96 is: 462,229.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,351.58 : 995,028.96 = 308,616.96 : x
  2. Step 2: Convert to fraction form
    664,351.58/995,028.96 = 308,616.96/x
  3. Step 3: Cross multiply
    664,351.58x = 995,028.96 × 308,616.96
  4. Step 4: Simplify right side
    664,351.58x = 307,082,812,747.16
  5. Step 5: Solve for x
    x = 307,082,812,747.16/664,351.58
  6. Step 6: Final answer
    x = 462,229.37

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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.