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Finding the Fourth Proportional to 894.59, 1,340.40 and 633.29

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Solution

The fourth proportional to 894.59, 1,340.40 and 633.29 is: 948.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.59 : 1,340.40 = 633.29 : x
  2. Step 2: Convert to fraction form
    894.59/1,340.40 = 633.29/x
  3. Step 3: Cross multiply
    894.59x = 1,340.40 × 633.29
  4. Step 4: Simplify right side
    894.59x = 848,855.21
  5. Step 5: Solve for x
    x = 848,855.21/894.59
  6. Step 6: Final answer
    x = 948.88

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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.