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Finding the Fourth Proportional to 479,514.42, 661,751.49 and 275,631.54

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Solution

The fourth proportional to 479,514.42, 661,751.49 and 275,631.54 is: 380,383.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,514.42 : 661,751.49 = 275,631.54 : x
  2. Step 2: Convert to fraction form
    479,514.42/661,751.49 = 275,631.54/x
  3. Step 3: Cross multiply
    479,514.42x = 661,751.49 × 275,631.54
  4. Step 4: Simplify right side
    479,514.42x = 182,399,582,286.00
  5. Step 5: Solve for x
    x = 182,399,582,286.00/479,514.42
  6. Step 6: Final answer
    x = 380,383.94

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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.