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Finding the Fourth Proportional to 896.13, 1,341.50 and 587.39

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Solution

The fourth proportional to 896.13, 1,341.50 and 587.39 is: 879.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    896.13 : 1,341.50 = 587.39 : x
  2. Step 2: Convert to fraction form
    896.13/1,341.50 = 587.39/x
  3. Step 3: Cross multiply
    896.13x = 1,341.50 × 587.39
  4. Step 4: Simplify right side
    896.13x = 787,974.04
  5. Step 5: Solve for x
    x = 787,974.04/896.13
  6. Step 6: Final answer
    x = 879.31

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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.