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Finding the Fourth Proportional to 547.02, 820.94 and 475.74

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Solution

The fourth proportional to 547.02, 820.94 and 475.74 is: 713.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.02 : 820.94 = 475.74 : x
  2. Step 2: Convert to fraction form
    547.02/820.94 = 475.74/x
  3. Step 3: Cross multiply
    547.02x = 820.94 × 475.74
  4. Step 4: Simplify right side
    547.02x = 390,551.62
  5. Step 5: Solve for x
    x = 390,551.62/547.02
  6. Step 6: Final answer
    x = 713.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.