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Finding the Fourth Proportional to 667,994.34, 921,890.51 and 366,246.66

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Solution

The fourth proportional to 667,994.34, 921,890.51 and 366,246.66 is: 505,452.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,994.34 : 921,890.51 = 366,246.66 : x
  2. Step 2: Convert to fraction form
    667,994.34/921,890.51 = 366,246.66/x
  3. Step 3: Cross multiply
    667,994.34x = 921,890.51 × 366,246.66
  4. Step 4: Simplify right side
    667,994.34x = 337,639,325,232.62
  5. Step 5: Solve for x
    x = 337,639,325,232.62/667,994.34
  6. Step 6: Final answer
    x = 505,452.37

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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.