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Finding the Fourth Proportional to 547,519.17, 755,568.54 and 305,805.18

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Solution

The fourth proportional to 547,519.17, 755,568.54 and 305,805.18 is: 422,006.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,519.17 : 755,568.54 = 305,805.18 : x
  2. Step 2: Convert to fraction form
    547,519.17/755,568.54 = 305,805.18/x
  3. Step 3: Cross multiply
    547,519.17x = 755,568.54 × 305,805.18
  4. Step 4: Simplify right side
    547,519.17x = 231,056,773,377.04
  5. Step 5: Solve for x
    x = 231,056,773,377.04/547,519.17
  6. Step 6: Final answer
    x = 422,006.73

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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.