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Finding the Fourth Proportional to 547,550.70, 755,611.98 and 305,836.68

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Solution

The fourth proportional to 547,550.70, 755,611.98 and 305,836.68 is: 422,050.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,550.70 : 755,611.98 = 305,836.68 : x
  2. Step 2: Convert to fraction form
    547,550.70/755,611.98 = 305,836.68/x
  3. Step 3: Cross multiply
    547,550.70x = 755,611.98 × 305,836.68
  4. Step 4: Simplify right side
    547,550.70x = 231,093,859,331.43
  5. Step 5: Solve for x
    x = 231,093,859,331.43/547,550.70
  6. Step 6: Final answer
    x = 422,050.16

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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.