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Finding the Fourth Proportional to 503,084.31, 694,241.87 and 276,729.81

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Solution

The fourth proportional to 503,084.31, 694,241.87 and 276,729.81 is: 381,879.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,084.31 : 694,241.87 = 276,729.81 : x
  2. Step 2: Convert to fraction form
    503,084.31/694,241.87 = 276,729.81/x
  3. Step 3: Cross multiply
    503,084.31x = 694,241.87 × 276,729.81
  4. Step 4: Simplify right side
    503,084.31x = 192,117,419,395.50
  5. Step 5: Solve for x
    x = 192,117,419,395.50/503,084.31
  6. Step 6: Final answer
    x = 381,879.17

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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.