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Finding the Fourth Proportional to 439,634.82, 606,810.09 and 248,758.94

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Solution

The fourth proportional to 439,634.82, 606,810.09 and 248,758.94 is: 343,351.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,634.82 : 606,810.09 = 248,758.94 : x
  2. Step 2: Convert to fraction form
    439,634.82/606,810.09 = 248,758.94/x
  3. Step 3: Cross multiply
    439,634.82x = 606,810.09 × 248,758.94
  4. Step 4: Simplify right side
    439,634.82x = 150,949,431,735.65
  5. Step 5: Solve for x
    x = 150,949,431,735.65/439,634.82
  6. Step 6: Final answer
    x = 343,351.86

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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.