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Finding the Fourth Proportional to 620.52, 862.39 and 614.04

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Solution

The fourth proportional to 620.52, 862.39 and 614.04 is: 853.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    620.52 : 862.39 = 614.04 : x
  2. Step 2: Convert to fraction form
    620.52/862.39 = 614.04/x
  3. Step 3: Cross multiply
    620.52x = 862.39 × 614.04
  4. Step 4: Simplify right side
    620.52x = 529,541.96
  5. Step 5: Solve for x
    x = 529,541.96/620.52
  6. Step 6: Final answer
    x = 853.38

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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.