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Finding the Fourth Proportional to 573.82, 792.12 and 442.60

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Solution

The fourth proportional to 573.82, 792.12 and 442.60 is: 610.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.82 : 792.12 = 442.60 : x
  2. Step 2: Convert to fraction form
    573.82/792.12 = 442.60/x
  3. Step 3: Cross multiply
    573.82x = 792.12 × 442.60
  4. Step 4: Simplify right side
    573.82x = 350,592.31
  5. Step 5: Solve for x
    x = 350,592.31/573.82
  6. Step 6: Final answer
    x = 610.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.