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Finding the Fourth Proportional to 733.14, 1,011.88 and 484.49

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Solution

The fourth proportional to 733.14, 1,011.88 and 484.49 is: 668.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    733.14 : 1,011.88 = 484.49 : x
  2. Step 2: Convert to fraction form
    733.14/1,011.88 = 484.49/x
  3. Step 3: Cross multiply
    733.14x = 1,011.88 × 484.49
  4. Step 4: Simplify right side
    733.14x = 490,245.74
  5. Step 5: Solve for x
    x = 490,245.74/733.14
  6. Step 6: Final answer
    x = 668.69

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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.