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Finding the Fourth Proportional to 893.97, 1,233.90 and 632.07

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Solution

The fourth proportional to 893.97, 1,233.90 and 632.07 is: 872.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    893.97 : 1,233.90 = 632.07 : x
  2. Step 2: Convert to fraction form
    893.97/1,233.90 = 632.07/x
  3. Step 3: Cross multiply
    893.97x = 1,233.90 × 632.07
  4. Step 4: Simplify right side
    893.97x = 779,911.17
  5. Step 5: Solve for x
    x = 779,911.17/893.97
  6. Step 6: Final answer
    x = 872.41

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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.