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Finding the Fourth Proportional to 494,044.30, 681,794.37 and 300,385.42

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Solution

The fourth proportional to 494,044.30, 681,794.37 and 300,385.42 is: 414,539.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,044.30 : 681,794.37 = 300,385.42 : x
  2. Step 2: Convert to fraction form
    494,044.30/681,794.37 = 300,385.42/x
  3. Step 3: Cross multiply
    494,044.30x = 681,794.37 × 300,385.42
  4. Step 4: Simplify right side
    494,044.30x = 204,801,088,186.09
  5. Step 5: Solve for x
    x = 204,801,088,186.09/494,044.30
  6. Step 6: Final answer
    x = 414,539.93

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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.