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Finding the Fourth Proportional to 439,402.49, 606,351.89 and 248,404.49

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Solution

The fourth proportional to 439,402.49, 606,351.89 and 248,404.49 is: 342,784.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,402.49 : 606,351.89 = 248,404.49 : x
  2. Step 2: Convert to fraction form
    439,402.49/606,351.89 = 248,404.49/x
  3. Step 3: Cross multiply
    439,402.49x = 606,351.89 × 248,404.49
  4. Step 4: Simplify right side
    439,402.49x = 150,620,530,753.96
  5. Step 5: Solve for x
    x = 150,620,530,753.96/439,402.49
  6. Step 6: Final answer
    x = 342,784.88

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1.5x scale

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.