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Finding the Fourth Proportional to 558,414.64, 770,611.62 and 303,765.22

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Solution

The fourth proportional to 558,414.64, 770,611.62 and 303,765.22 is: 419,195.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,414.64 : 770,611.62 = 303,765.22 : x
  2. Step 2: Convert to fraction form
    558,414.64/770,611.62 = 303,765.22/x
  3. Step 3: Cross multiply
    558,414.64x = 770,611.62 × 303,765.22
  4. Step 4: Simplify right side
    558,414.64x = 234,085,008,283.86
  5. Step 5: Solve for x
    x = 234,085,008,283.86/558,414.64
  6. Step 6: Final answer
    x = 419,195.69

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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.