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Finding the Fourth Proportional to 733.19, 1,011.49 and 481.05

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Solution

The fourth proportional to 733.19, 1,011.49 and 481.05 is: 663.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    733.19 : 1,011.49 = 481.05 : x
  2. Step 2: Convert to fraction form
    733.19/1,011.49 = 481.05/x
  3. Step 3: Cross multiply
    733.19x = 1,011.49 × 481.05
  4. Step 4: Simplify right side
    733.19x = 486,577.26
  5. Step 5: Solve for x
    x = 486,577.26/733.19
  6. Step 6: Final answer
    x = 663.64

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Double scale
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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.