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Finding the Fourth Proportional to 480.71, 717.32 and 426.03

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Solution

The fourth proportional to 480.71, 717.32 and 426.03 is: 635.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.71 : 717.32 = 426.03 : x
  2. Step 2: Convert to fraction form
    480.71/717.32 = 426.03/x
  3. Step 3: Cross multiply
    480.71x = 717.32 × 426.03
  4. Step 4: Simplify right side
    480.71x = 305,599.31
  5. Step 5: Solve for x
    x = 305,599.31/480.71
  6. Step 6: Final answer
    x = 635.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.