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Finding the Fourth Proportional to 558,540.30, 770,785.61 and 303,893.31

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Solution

The fourth proportional to 558,540.30, 770,785.61 and 303,893.31 is: 419,372.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,540.30 : 770,785.61 = 303,893.31 : x
  2. Step 2: Convert to fraction form
    558,540.30/770,785.61 = 303,893.31/x
  3. Step 3: Cross multiply
    558,540.30x = 770,785.61 × 303,893.31
  4. Step 4: Simplify right side
    558,540.30x = 234,236,590,323.27
  5. Step 5: Solve for x
    x = 234,236,590,323.27/558,540.30
  6. Step 6: Final answer
    x = 419,372.77

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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.