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Finding the Fourth Proportional to 538,530.44, 743,169.60 and 293,514.80

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Solution

The fourth proportional to 538,530.44, 743,169.60 and 293,514.80 is: 405,049.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,530.44 : 743,169.60 = 293,514.80 : x
  2. Step 2: Convert to fraction form
    538,530.44/743,169.60 = 293,514.80/x
  3. Step 3: Cross multiply
    538,530.44x = 743,169.60 × 293,514.80
  4. Step 4: Simplify right side
    538,530.44x = 218,131,276,510.08
  5. Step 5: Solve for x
    x = 218,131,276,510.08/538,530.44
  6. Step 6: Final answer
    x = 405,049.11

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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.