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Finding the Fourth Proportional to 444.61, 662.99 and 427.33

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Solution

The fourth proportional to 444.61, 662.99 and 427.33 is: 637.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.61 : 662.99 = 427.33 : x
  2. Step 2: Convert to fraction form
    444.61/662.99 = 427.33/x
  3. Step 3: Cross multiply
    444.61x = 662.99 × 427.33
  4. Step 4: Simplify right side
    444.61x = 283,315.52
  5. Step 5: Solve for x
    x = 283,315.52/444.61
  6. Step 6: Final answer
    x = 637.22

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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.