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Finding the Fourth Proportional to 558,443.88, 770,648.88 and 303,796.08

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Solution

The fourth proportional to 558,443.88, 770,648.88 and 303,796.08 is: 419,236.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,443.88 : 770,648.88 = 303,796.08 : x
  2. Step 2: Convert to fraction form
    558,443.88/770,648.88 = 303,796.08/x
  3. Step 3: Cross multiply
    558,443.88x = 770,648.88 × 303,796.08
  4. Step 4: Simplify right side
    558,443.88x = 234,120,108,800.39
  5. Step 5: Solve for x
    x = 234,120,108,800.39/558,443.88
  6. Step 6: Final answer
    x = 419,236.59

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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.