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Finding the Fourth Proportional to 547,654.59, 755,736.35 and 305,889.03

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Solution

The fourth proportional to 547,654.59, 755,736.35 and 305,889.03 is: 422,111.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,654.59 : 755,736.35 = 305,889.03 : x
  2. Step 2: Convert to fraction form
    547,654.59/755,736.35 = 305,889.03/x
  3. Step 3: Cross multiply
    547,654.59x = 755,736.35 × 305,889.03
  4. Step 4: Simplify right side
    547,654.59x = 231,171,457,507.80
  5. Step 5: Solve for x
    x = 231,171,457,507.80/547,654.59
  6. Step 6: Final answer
    x = 422,111.79

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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.