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Finding the Fourth Proportional to 1,262.06, 1,893.51 and 440.54

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Solution

The fourth proportional to 1,262.06, 1,893.51 and 440.54 is: 660.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262.06 : 1,893.51 = 440.54 : x
  2. Step 2: Convert to fraction form
    1,262.06/1,893.51 = 440.54/x
  3. Step 3: Cross multiply
    1,262.06x = 1,893.51 × 440.54
  4. Step 4: Simplify right side
    1,262.06x = 834,166.90
  5. Step 5: Solve for x
    x = 834,166.90/1,262.06
  6. Step 6: Final answer
    x = 660.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.