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Finding the Fourth Proportional to 548,896.80, 823,863.60 and 338,944.80

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Solution

The fourth proportional to 548,896.80, 823,863.60 and 338,944.80 is: 508,737.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,896.80 : 823,863.60 = 338,944.80 : x
  2. Step 2: Convert to fraction form
    548,896.80/823,863.60 = 338,944.80/x
  3. Step 3: Cross multiply
    548,896.80x = 823,863.60 × 338,944.80
  4. Step 4: Simplify right side
    548,896.80x = 279,244,283,129.28
  5. Step 5: Solve for x
    x = 279,244,283,129.28/548,896.80
  6. Step 6: Final answer
    x = 508,737.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.