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Finding the Fourth Proportional to 636,383.72, 878,212.84 and 349,922.26

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Solution

The fourth proportional to 636,383.72, 878,212.84 and 349,922.26 is: 482,894.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,383.72 : 878,212.84 = 349,922.26 : x
  2. Step 2: Convert to fraction form
    636,383.72/878,212.84 = 349,922.26/x
  3. Step 3: Cross multiply
    636,383.72x = 878,212.84 × 349,922.26
  4. Step 4: Simplify right side
    636,383.72x = 307,306,221,733.82
  5. Step 5: Solve for x
    x = 307,306,221,733.82/636,383.72
  6. Step 6: Final answer
    x = 482,894.54

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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.