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Finding the Fourth Proportional to 675.83, 933.17 and 439.92

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Solution

The fourth proportional to 675.83, 933.17 and 439.92 is: 607.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    675.83 : 933.17 = 439.92 : x
  2. Step 2: Convert to fraction form
    675.83/933.17 = 439.92/x
  3. Step 3: Cross multiply
    675.83x = 933.17 × 439.92
  4. Step 4: Simplify right side
    675.83x = 410,517.95
  5. Step 5: Solve for x
    x = 410,517.95/675.83
  6. Step 6: Final answer
    x = 607.43

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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.