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Finding the Fourth Proportional to 625.22, 856.54 and 601.85

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Solution

The fourth proportional to 625.22, 856.54 and 601.85 is: 824.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.22 : 856.54 = 601.85 : x
  2. Step 2: Convert to fraction form
    625.22/856.54 = 601.85/x
  3. Step 3: Cross multiply
    625.22x = 856.54 × 601.85
  4. Step 4: Simplify right side
    625.22x = 515,508.60
  5. Step 5: Solve for x
    x = 515,508.60/625.22
  6. Step 6: Final answer
    x = 824.52

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.