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Finding the Fourth Proportional to 884.52, 1,222.11 and 699.93

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Solution

The fourth proportional to 884.52, 1,222.11 and 699.93 is: 967.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    884.52 : 1,222.11 = 699.93 : x
  2. Step 2: Convert to fraction form
    884.52/1,222.11 = 699.93/x
  3. Step 3: Cross multiply
    884.52x = 1,222.11 × 699.93
  4. Step 4: Simplify right side
    884.52x = 855,391.45
  5. Step 5: Solve for x
    x = 855,391.45/884.52
  6. Step 6: Final answer
    x = 967.07

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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.