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Finding the Fourth Proportional to 887.06, 1,331.22 and 400.17

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Solution

The fourth proportional to 887.06, 1,331.22 and 400.17 is: 600.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.06 : 1,331.22 = 400.17 : x
  2. Step 2: Convert to fraction form
    887.06/1,331.22 = 400.17/x
  3. Step 3: Cross multiply
    887.06x = 1,331.22 × 400.17
  4. Step 4: Simplify right side
    887.06x = 532,714.31
  5. Step 5: Solve for x
    x = 532,714.31/887.06
  6. Step 6: Final answer
    x = 600.54

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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.