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Finding the Fourth Proportional to 634.02, 873.54 and 484.38

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Solution

The fourth proportional to 634.02, 873.54 and 484.38 is: 667.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.02 : 873.54 = 484.38 : x
  2. Step 2: Convert to fraction form
    634.02/873.54 = 484.38/x
  3. Step 3: Cross multiply
    634.02x = 873.54 × 484.38
  4. Step 4: Simplify right side
    634.02x = 423,125.31
  5. Step 5: Solve for x
    x = 423,125.31/634.02
  6. Step 6: Final answer
    x = 667.37

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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.