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Finding the Fourth Proportional to 864.62, 1,193.63 and 533.24

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Solution

The fourth proportional to 864.62, 1,193.63 and 533.24 is: 736.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    864.62 : 1,193.63 = 533.24 : x
  2. Step 2: Convert to fraction form
    864.62/1,193.63 = 533.24/x
  3. Step 3: Cross multiply
    864.62x = 1,193.63 × 533.24
  4. Step 4: Simplify right side
    864.62x = 636,487.10
  5. Step 5: Solve for x
    x = 636,487.10/864.62
  6. Step 6: Final answer
    x = 736.15

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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.