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Finding the Fourth Proportional to 676.44, 933.62 and 440.68

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Solution

The fourth proportional to 676.44, 933.62 and 440.68 is: 608.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.44 : 933.62 = 440.68 : x
  2. Step 2: Convert to fraction form
    676.44/933.62 = 440.68/x
  3. Step 3: Cross multiply
    676.44x = 933.62 × 440.68
  4. Step 4: Simplify right side
    676.44x = 411,427.66
  5. Step 5: Solve for x
    x = 411,427.66/676.44
  6. Step 6: Final answer
    x = 608.22

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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.