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Finding the Fourth Proportional to 669,318.44, 923,654.32 and 363,388.82

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Solution

The fourth proportional to 669,318.44, 923,654.32 and 363,388.82 is: 501,473.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,318.44 : 923,654.32 = 363,388.82 : x
  2. Step 2: Convert to fraction form
    669,318.44/923,654.32 = 363,388.82/x
  3. Step 3: Cross multiply
    669,318.44x = 923,654.32 × 363,388.82
  4. Step 4: Simplify right side
    669,318.44x = 335,645,647,905.96
  5. Step 5: Solve for x
    x = 335,645,647,905.96/669,318.44
  6. Step 6: Final answer
    x = 501,473.78

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1.5x scale

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.