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Finding the Fourth Proportional to 669,138.29, 923,411.73 and 363,214.47

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Solution

The fourth proportional to 669,138.29, 923,411.73 and 363,214.47 is: 501,236.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,138.29 : 923,411.73 = 363,214.47 : x
  2. Step 2: Convert to fraction form
    669,138.29/923,411.73 = 363,214.47/x
  3. Step 3: Cross multiply
    669,138.29x = 923,411.73 × 363,214.47
  4. Step 4: Simplify right side
    669,138.29x = 335,396,502,103.73
  5. Step 5: Solve for x
    x = 335,396,502,103.73/669,138.29
  6. Step 6: Final answer
    x = 501,236.46

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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.