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Finding the Fourth Proportional to 547,801.77, 755,964.86 and 306,084.53

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Solution

The fourth proportional to 547,801.77, 755,964.86 and 306,084.53 is: 422,395.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,801.77 : 755,964.86 = 306,084.53 : x
  2. Step 2: Convert to fraction form
    547,801.77/755,964.86 = 306,084.53/x
  3. Step 3: Cross multiply
    547,801.77x = 755,964.86 × 306,084.53
  4. Step 4: Simplify right side
    547,801.77x = 231,389,145,723.56
  5. Step 5: Solve for x
    x = 231,389,145,723.56/547,801.77
  6. Step 6: Final answer
    x = 422,395.76

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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.