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Finding the Fourth Proportional to 439,672.78, 606,727.02 and 248,682.07

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Solution

The fourth proportional to 439,672.78, 606,727.02 and 248,682.07 is: 343,169.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,672.78 : 606,727.02 = 248,682.07 : x
  2. Step 2: Convert to fraction form
    439,672.78/606,727.02 = 248,682.07/x
  3. Step 3: Cross multiply
    439,672.78x = 606,727.02 × 248,682.07
  4. Step 4: Simplify right side
    439,672.78x = 150,882,131,258.53
  5. Step 5: Solve for x
    x = 150,882,131,258.53/439,672.78
  6. Step 6: Final answer
    x = 343,169.14

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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.