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Finding the Fourth Proportional to 547,704.15, 755,867.19 and 305,988.02

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Solution

The fourth proportional to 547,704.15, 755,867.19 and 305,988.02 is: 422,283.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,704.15 : 755,867.19 = 305,988.02 : x
  2. Step 2: Convert to fraction form
    547,704.15/755,867.19 = 305,988.02/x
  3. Step 3: Cross multiply
    547,704.15x = 755,867.19 × 305,988.02
  4. Step 4: Simplify right side
    547,704.15x = 231,286,306,740.73
  5. Step 5: Solve for x
    x = 231,286,306,740.73/547,704.15
  6. Step 6: Final answer
    x = 422,283.29

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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.