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Finding the Fourth Proportional to 833.92, 1,250.88 and 576.64

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Solution

The fourth proportional to 833.92, 1,250.88 and 576.64 is: 864.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    833.92 : 1,250.88 = 576.64 : x
  2. Step 2: Convert to fraction form
    833.92/1,250.88 = 576.64/x
  3. Step 3: Cross multiply
    833.92x = 1,250.88 × 576.64
  4. Step 4: Simplify right side
    833.92x = 721,307.44
  5. Step 5: Solve for x
    x = 721,307.44/833.92
  6. Step 6: Final answer
    x = 864.96

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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.