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Finding the Fourth Proportional to 547,540.50, 755,598.03 and 305,826.60

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Solution

The fourth proportional to 547,540.50, 755,598.03 and 305,826.60 is: 422,036.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,540.50 : 755,598.03 = 305,826.60 : x
  2. Step 2: Convert to fraction form
    547,540.50/755,598.03 = 305,826.60/x
  3. Step 3: Cross multiply
    547,540.50x = 755,598.03 × 305,826.60
  4. Step 4: Simplify right side
    547,540.50x = 231,081,976,481.60
  5. Step 5: Solve for x
    x = 231,081,976,481.60/547,540.50
  6. Step 6: Final answer
    x = 422,036.32

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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.