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Finding the Fourth Proportional to 471.40, 706.44 and 401.63

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Solution

The fourth proportional to 471.40, 706.44 and 401.63 is: 601.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.40 : 706.44 = 401.63 : x
  2. Step 2: Convert to fraction form
    471.40/706.44 = 401.63/x
  3. Step 3: Cross multiply
    471.40x = 706.44 × 401.63
  4. Step 4: Simplify right side
    471.40x = 283,724.97
  5. Step 5: Solve for x
    x = 283,724.97/471.40
  6. Step 6: Final answer
    x = 601.88

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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.