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Finding the Fourth Proportional to 599.60, 826.98 and 442.15

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Solution

The fourth proportional to 599.60, 826.98 and 442.15 is: 609.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    599.60 : 826.98 = 442.15 : x
  2. Step 2: Convert to fraction form
    599.60/826.98 = 442.15/x
  3. Step 3: Cross multiply
    599.60x = 826.98 × 442.15
  4. Step 4: Simplify right side
    599.60x = 365,649.21
  5. Step 5: Solve for x
    x = 365,649.21/599.60
  6. Step 6: Final answer
    x = 609.82

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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.