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Finding the Fourth Proportional to 863.34, 1,190.34 and 601.44

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Solution

The fourth proportional to 863.34, 1,190.34 and 601.44 is: 829.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    863.34 : 1,190.34 = 601.44 : x
  2. Step 2: Convert to fraction form
    863.34/1,190.34 = 601.44/x
  3. Step 3: Cross multiply
    863.34x = 1,190.34 × 601.44
  4. Step 4: Simplify right side
    863.34x = 715,918.09
  5. Step 5: Solve for x
    x = 715,918.09/863.34
  6. Step 6: Final answer
    x = 829.24

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Double scale
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1.5x scale

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.