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Finding the Fourth Proportional to 669,138.75, 923,412.31 and 363,214.97

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Solution

The fourth proportional to 669,138.75, 923,412.31 and 363,214.97 is: 501,237.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,138.75 : 923,412.31 = 363,214.97 : x
  2. Step 2: Convert to fraction form
    669,138.75/923,412.31 = 363,214.97/x
  3. Step 3: Cross multiply
    669,138.75x = 923,412.31 × 363,214.97
  4. Step 4: Simplify right side
    669,138.75x = 335,397,168,949.18
  5. Step 5: Solve for x
    x = 335,397,168,949.18/669,138.75
  6. Step 6: Final answer
    x = 501,237.10

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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.