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Finding the Fourth Proportional to 636,735.43, 878,680.24 and 350,249.41

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Solution

The fourth proportional to 636,735.43, 878,680.24 and 350,249.41 is: 483,336.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,735.43 : 878,680.24 = 350,249.41 : x
  2. Step 2: Convert to fraction form
    636,735.43/878,680.24 = 350,249.41/x
  3. Step 3: Cross multiply
    636,735.43x = 878,680.24 × 350,249.41
  4. Step 4: Simplify right side
    636,735.43x = 307,757,235,638.66
  5. Step 5: Solve for x
    x = 307,757,235,638.66/636,735.43
  6. Step 6: Final answer
    x = 483,336.13

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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.