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Finding the Fourth Proportional to 558,321.85, 770,446.24 and 303,667.57

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Solution

The fourth proportional to 558,321.85, 770,446.24 and 303,667.57 is: 419,040.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,321.85 : 770,446.24 = 303,667.57 : x
  2. Step 2: Convert to fraction form
    558,321.85/770,446.24 = 303,667.57/x
  3. Step 3: Cross multiply
    558,321.85x = 770,446.24 × 303,667.57
  4. Step 4: Simplify right side
    558,321.85x = 233,959,537,516.44
  5. Step 5: Solve for x
    x = 233,959,537,516.44/558,321.85
  6. Step 6: Final answer
    x = 419,040.63

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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.