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Finding the Fourth Proportional to 526.20, 788.27 and 481.09

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Solution

The fourth proportional to 526.20, 788.27 and 481.09 is: 720.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.20 : 788.27 = 481.09 : x
  2. Step 2: Convert to fraction form
    526.20/788.27 = 481.09/x
  3. Step 3: Cross multiply
    526.20x = 788.27 × 481.09
  4. Step 4: Simplify right side
    526.20x = 379,228.81
  5. Step 5: Solve for x
    x = 379,228.81/526.20
  6. Step 6: Final answer
    x = 720.69

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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.