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Finding the Fourth Proportional to 636,481.92, 878,367.60 and 350,023.80

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Solution

The fourth proportional to 636,481.92, 878,367.60 and 350,023.80 is: 483,045.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,481.92 : 878,367.60 = 350,023.80 : x
  2. Step 2: Convert to fraction form
    636,481.92/878,367.60 = 350,023.80/x
  3. Step 3: Cross multiply
    636,481.92x = 878,367.60 × 350,023.80
  4. Step 4: Simplify right side
    636,481.92x = 307,449,565,148.88
  5. Step 5: Solve for x
    x = 307,449,565,148.88/636,481.92
  6. Step 6: Final answer
    x = 483,045.25

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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.