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Finding the Fourth Proportional to 866.36, 1,194.35 and 534.60

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Solution

The fourth proportional to 866.36, 1,194.35 and 534.60 is: 736.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    866.36 : 1,194.35 = 534.60 : x
  2. Step 2: Convert to fraction form
    866.36/1,194.35 = 534.60/x
  3. Step 3: Cross multiply
    866.36x = 1,194.35 × 534.60
  4. Step 4: Simplify right side
    866.36x = 638,496.84
  5. Step 5: Solve for x
    x = 638,496.84/866.36
  6. Step 6: Final answer
    x = 736.99

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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.