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Finding the Fourth Proportional to 451.54, 625.52 and 440.77

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Solution

The fourth proportional to 451.54, 625.52 and 440.77 is: 610.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.54 : 625.52 = 440.77 : x
  2. Step 2: Convert to fraction form
    451.54/625.52 = 440.77/x
  3. Step 3: Cross multiply
    451.54x = 625.52 × 440.77
  4. Step 4: Simplify right side
    451.54x = 275,709.40
  5. Step 5: Solve for x
    x = 275,709.40/451.54
  6. Step 6: Final answer
    x = 610.60

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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.