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Finding the Fourth Proportional to 630.18, 874.13 and 608.04

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Solution

The fourth proportional to 630.18, 874.13 and 608.04 is: 843.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.18 : 874.13 = 608.04 : x
  2. Step 2: Convert to fraction form
    630.18/874.13 = 608.04/x
  3. Step 3: Cross multiply
    630.18x = 874.13 × 608.04
  4. Step 4: Simplify right side
    630.18x = 531,502.97
  5. Step 5: Solve for x
    x = 531,502.97/630.18
  6. Step 6: Final answer
    x = 843.41

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.