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Finding the Fourth Proportional to 662,508.05, 993,855.01 and 325,561.97

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Solution

The fourth proportional to 662,508.05, 993,855.01 and 325,561.97 is: 488,388.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,508.05 : 993,855.01 = 325,561.97 : x
  2. Step 2: Convert to fraction form
    662,508.05/993,855.01 = 325,561.97/x
  3. Step 3: Cross multiply
    662,508.05x = 993,855.01 × 325,561.97
  4. Step 4: Simplify right side
    662,508.05x = 323,561,394,949.97
  5. Step 5: Solve for x
    x = 323,561,394,949.97/662,508.05
  6. Step 6: Final answer
    x = 488,388.62

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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.