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Finding the Fourth Proportional to 675.73, 933.34 and 488.92

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Solution

The fourth proportional to 675.73, 933.34 and 488.92 is: 675.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    675.73 : 933.34 = 488.92 : x
  2. Step 2: Convert to fraction form
    675.73/933.34 = 488.92/x
  3. Step 3: Cross multiply
    675.73x = 933.34 × 488.92
  4. Step 4: Simplify right side
    675.73x = 456,329.58
  5. Step 5: Solve for x
    x = 456,329.58/675.73
  6. Step 6: Final answer
    x = 675.31

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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.