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Finding the Fourth Proportional to 503,381.76, 694,668 and 273,939.12

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Solution

The fourth proportional to 503,381.76, 694,668 and 273,939.12 is: 378,036.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,381.76 : 694,668 = 273,939.12 : x
  2. Step 2: Convert to fraction form
    503,381.76/694,668 = 273,939.12/x
  3. Step 3: Cross multiply
    503,381.76x = 694,668 × 273,939.12
  4. Step 4: Simplify right side
    503,381.76x = 190,296,740,612.16
  5. Step 5: Solve for x
    x = 190,296,740,612.16/503,381.76
  6. Step 6: Final answer
    x = 378,036.62

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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.