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Finding the Fourth Proportional to 667,994.82, 921,891.15 and 366,247.14

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Solution

The fourth proportional to 667,994.82, 921,891.15 and 366,247.14 is: 505,453.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,994.82 : 921,891.15 = 366,247.14 : x
  2. Step 2: Convert to fraction form
    667,994.82/921,891.15 = 366,247.14/x
  3. Step 3: Cross multiply
    667,994.82x = 921,891.15 × 366,247.14
  4. Step 4: Simplify right side
    667,994.82x = 337,639,997,078.81
  5. Step 5: Solve for x
    x = 337,639,997,078.81/667,994.82
  6. Step 6: Final answer
    x = 505,453.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.