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Finding the Fourth Proportional to 444.94, 664.01 and 396.34

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Solution

The fourth proportional to 444.94, 664.01 and 396.34 is: 591.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.94 : 664.01 = 396.34 : x
  2. Step 2: Convert to fraction form
    444.94/664.01 = 396.34/x
  3. Step 3: Cross multiply
    444.94x = 664.01 × 396.34
  4. Step 4: Simplify right side
    444.94x = 263,173.72
  5. Step 5: Solve for x
    x = 263,173.72/444.94
  6. Step 6: Final answer
    x = 591.48

Related Problems

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Double scale
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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.