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Finding the Fourth Proportional to 547,450.61, 755,372.25 and 305,695.98

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Solution

The fourth proportional to 547,450.61, 755,372.25 and 305,695.98 is: 421,799.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,450.61 : 755,372.25 = 305,695.98 : x
  2. Step 2: Convert to fraction form
    547,450.61/755,372.25 = 305,695.98/x
  3. Step 3: Cross multiply
    547,450.61x = 755,372.25 × 305,695.98
  4. Step 4: Simplify right side
    547,450.61x = 230,914,260,228.56
  5. Step 5: Solve for x
    x = 230,914,260,228.56/547,450.61
  6. Step 6: Final answer
    x = 421,799.26

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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.