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Finding the Fourth Proportional to 547.85, 754.56 and 464.45

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Solution

The fourth proportional to 547.85, 754.56 and 464.45 is: 639.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.85 : 754.56 = 464.45 : x
  2. Step 2: Convert to fraction form
    547.85/754.56 = 464.45/x
  3. Step 3: Cross multiply
    547.85x = 754.56 × 464.45
  4. Step 4: Simplify right side
    547.85x = 350,451.62
  5. Step 5: Solve for x
    x = 350,451.62/547.85
  6. Step 6: Final answer
    x = 639.69

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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.