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Finding the Fourth Proportional to 441,808.38, 662,699.34 and 121,979.73

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Solution

The fourth proportional to 441,808.38, 662,699.34 and 121,979.73 is: 182,965.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,808.38 : 662,699.34 = 121,979.73 : x
  2. Step 2: Convert to fraction form
    441,808.38/662,699.34 = 121,979.73/x
  3. Step 3: Cross multiply
    441,808.38x = 662,699.34 × 121,979.73
  4. Step 4: Simplify right side
    441,808.38x = 80,835,886,564.38
  5. Step 5: Solve for x
    x = 80,835,886,564.38/441,808.38
  6. Step 6: Final answer
    x = 182,965.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.