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Finding the Fourth Proportional to 884.56, 1,326.84 and 499

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Solution

The fourth proportional to 884.56, 1,326.84 and 499 is: 748.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    884.56 : 1,326.84 = 499 : x
  2. Step 2: Convert to fraction form
    884.56/1,326.84 = 499/x
  3. Step 3: Cross multiply
    884.56x = 1,326.84 × 499
  4. Step 4: Simplify right side
    884.56x = 662,093.16
  5. Step 5: Solve for x
    x = 662,093.16/884.56
  6. Step 6: Final answer
    x = 748.50

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.