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Finding the Fourth Proportional to 896.06, 1,340.73 and 622.68

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Solution

The fourth proportional to 896.06, 1,340.73 and 622.68 is: 931.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    896.06 : 1,340.73 = 622.68 : x
  2. Step 2: Convert to fraction form
    896.06/1,340.73 = 622.68/x
  3. Step 3: Cross multiply
    896.06x = 1,340.73 × 622.68
  4. Step 4: Simplify right side
    896.06x = 834,845.76
  5. Step 5: Solve for x
    x = 834,845.76/896.06
  6. Step 6: Final answer
    x = 931.69

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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.