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Finding the Fourth Proportional to 439,659.76, 606,744.24 and 248,669.44

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Solution

The fourth proportional to 439,659.76, 606,744.24 and 248,669.44 is: 343,171.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,659.76 : 606,744.24 = 248,669.44 : x
  2. Step 2: Convert to fraction form
    439,659.76/606,744.24 = 248,669.44/x
  3. Step 3: Cross multiply
    439,659.76x = 606,744.24 × 248,669.44
  4. Step 4: Simplify right side
    439,659.76x = 150,878,750,384.03
  5. Step 5: Solve for x
    x = 150,878,750,384.03/439,659.76
  6. Step 6: Final answer
    x = 343,171.62

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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.