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Finding the Fourth Proportional to 547,690.82, 755,738.51 and 305,943.48

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Solution

The fourth proportional to 547,690.82, 755,738.51 and 305,943.48 is: 422,160.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,690.82 : 755,738.51 = 305,943.48 : x
  2. Step 2: Convert to fraction form
    547,690.82/755,738.51 = 305,943.48/x
  3. Step 3: Cross multiply
    547,690.82x = 755,738.51 × 305,943.48
  4. Step 4: Simplify right side
    547,690.82x = 231,213,268,189.70
  5. Step 5: Solve for x
    x = 231,213,268,189.70/547,690.82
  6. Step 6: Final answer
    x = 422,160.21

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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.