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Finding the Fourth Proportional to 521.01, 717.35 and 472.41

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Solution

The fourth proportional to 521.01, 717.35 and 472.41 is: 650.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    521.01 : 717.35 = 472.41 : x
  2. Step 2: Convert to fraction form
    521.01/717.35 = 472.41/x
  3. Step 3: Cross multiply
    521.01x = 717.35 × 472.41
  4. Step 4: Simplify right side
    521.01x = 338,880.95
  5. Step 5: Solve for x
    x = 338,880.95/521.01
  6. Step 6: Final answer
    x = 650.43

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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.