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Finding the Fourth Proportional to 625.02, 863.60 and 514.41

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Solution

The fourth proportional to 625.02, 863.60 and 514.41 is: 710.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.02 : 863.60 = 514.41 : x
  2. Step 2: Convert to fraction form
    625.02/863.60 = 514.41/x
  3. Step 3: Cross multiply
    625.02x = 863.60 × 514.41
  4. Step 4: Simplify right side
    625.02x = 444,244.48
  5. Step 5: Solve for x
    x = 444,244.48/625.02
  6. Step 6: Final answer
    x = 710.77

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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.