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Finding the Fourth Proportional to 624.44, 937.16 and 442.02

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Solution

The fourth proportional to 624.44, 937.16 and 442.02 is: 663.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.44 : 937.16 = 442.02 : x
  2. Step 2: Convert to fraction form
    624.44/937.16 = 442.02/x
  3. Step 3: Cross multiply
    624.44x = 937.16 × 442.02
  4. Step 4: Simplify right side
    624.44x = 414,243.46
  5. Step 5: Solve for x
    x = 414,243.46/624.44
  6. Step 6: Final answer
    x = 663.38

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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.