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Finding the Fourth Proportional to 635.28, 946.94 and 607.61

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Solution

The fourth proportional to 635.28, 946.94 and 607.61 is: 905.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.28 : 946.94 = 607.61 : x
  2. Step 2: Convert to fraction form
    635.28/946.94 = 607.61/x
  3. Step 3: Cross multiply
    635.28x = 946.94 × 607.61
  4. Step 4: Simplify right side
    635.28x = 575,362.44
  5. Step 5: Solve for x
    x = 575,362.44/635.28
  6. Step 6: Final answer
    x = 905.68

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.