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Finding the Fourth Proportional to 865.56, 1,194.08 and 533.72

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Solution

The fourth proportional to 865.56, 1,194.08 and 533.72 is: 736.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    865.56 : 1,194.08 = 533.72 : x
  2. Step 2: Convert to fraction form
    865.56/1,194.08 = 533.72/x
  3. Step 3: Cross multiply
    865.56x = 1,194.08 × 533.72
  4. Step 4: Simplify right side
    865.56x = 637,304.38
  5. Step 5: Solve for x
    x = 637,304.38/865.56
  6. Step 6: Final answer
    x = 736.29

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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.