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Finding the Fourth Proportional to 665,843.96, 998,865.38 and 245,087.84

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Solution

The fourth proportional to 665,843.96, 998,865.38 and 245,087.84 is: 367,668.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,843.96 : 998,865.38 = 245,087.84 : x
  2. Step 2: Convert to fraction form
    665,843.96/998,865.38 = 245,087.84/x
  3. Step 3: Cross multiply
    665,843.96x = 998,865.38 × 245,087.84
  4. Step 4: Simplify right side
    665,843.96x = 244,809,758,434.98
  5. Step 5: Solve for x
    x = 244,809,758,434.98/665,843.96
  6. Step 6: Final answer
    x = 367,668.36

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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.