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Finding the Fourth Proportional to 439,754.86, 606,875.25 and 248,764.42

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Solution

The fourth proportional to 439,754.86, 606,875.25 and 248,764.42 is: 343,302.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,754.86 : 606,875.25 = 248,764.42 : x
  2. Step 2: Convert to fraction form
    439,754.86/606,875.25 = 248,764.42/x
  3. Step 3: Cross multiply
    439,754.86x = 606,875.25 × 248,764.42
  4. Step 4: Simplify right side
    439,754.86x = 150,968,969,578.61
  5. Step 5: Solve for x
    x = 150,968,969,578.61/439,754.86
  6. Step 6: Final answer
    x = 343,302.56

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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.