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Finding the Fourth Proportional to 504,974.25, 696,879.05 and 278,634.33

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Solution

The fourth proportional to 504,974.25, 696,879.05 and 278,634.33 is: 384,523.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,974.25 : 696,879.05 = 278,634.33 : x
  2. Step 2: Convert to fraction form
    504,974.25/696,879.05 = 278,634.33/x
  3. Step 3: Cross multiply
    504,974.25x = 696,879.05 × 278,634.33
  4. Step 4: Simplify right side
    504,974.25x = 194,174,425,794.62
  5. Step 5: Solve for x
    x = 194,174,425,794.62/504,974.25
  6. Step 6: Final answer
    x = 384,523.42

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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.