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Finding the Fourth Proportional to 867.48, 1,196.73 and 535.77

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Solution

The fourth proportional to 867.48, 1,196.73 and 535.77 is: 739.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    867.48 : 1,196.73 = 535.77 : x
  2. Step 2: Convert to fraction form
    867.48/1,196.73 = 535.77/x
  3. Step 3: Cross multiply
    867.48x = 1,196.73 × 535.77
  4. Step 4: Simplify right side
    867.48x = 641,172.03
  5. Step 5: Solve for x
    x = 641,172.03/867.48
  6. Step 6: Final answer
    x = 739.12

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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.