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Finding the Fourth Proportional to 547,863.41, 756,037.03 and 306,147.97

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Solution

The fourth proportional to 547,863.41, 756,037.03 and 306,147.97 is: 422,476.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,863.41 : 756,037.03 = 306,147.97 : x
  2. Step 2: Convert to fraction form
    547,863.41/756,037.03 = 306,147.97/x
  3. Step 3: Cross multiply
    547,863.41x = 756,037.03 × 306,147.97
  4. Step 4: Simplify right side
    547,863.41x = 231,459,201,979.33
  5. Step 5: Solve for x
    x = 231,459,201,979.33/547,863.41
  6. Step 6: Final answer
    x = 422,476.11

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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.