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Finding the Fourth Proportional to 894.21, 1,233.63 and 614.49

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Solution

The fourth proportional to 894.21, 1,233.63 and 614.49 is: 847.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.21 : 1,233.63 = 614.49 : x
  2. Step 2: Convert to fraction form
    894.21/1,233.63 = 614.49/x
  3. Step 3: Cross multiply
    894.21x = 1,233.63 × 614.49
  4. Step 4: Simplify right side
    894.21x = 758,053.30
  5. Step 5: Solve for x
    x = 758,053.30/894.21
  6. Step 6: Final answer
    x = 847.74

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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.