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Finding the Fourth Proportional to 558,410.75, 770,614.52 and 303,761.94

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Solution

The fourth proportional to 558,410.75, 770,614.52 and 303,761.94 is: 419,195.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,410.75 : 770,614.52 = 303,761.94 : x
  2. Step 2: Convert to fraction form
    558,410.75/770,614.52 = 303,761.94/x
  3. Step 3: Cross multiply
    558,410.75x = 770,614.52 × 303,761.94
  4. Step 4: Simplify right side
    558,410.75x = 234,083,361,587.37
  5. Step 5: Solve for x
    x = 234,083,361,587.37/558,410.75
  6. Step 6: Final answer
    x = 419,195.66

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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.