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Finding the Fourth Proportional to 833.32, 1,149.91 and 484.03

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Solution

The fourth proportional to 833.32, 1,149.91 and 484.03 is: 667.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    833.32 : 1,149.91 = 484.03 : x
  2. Step 2: Convert to fraction form
    833.32/1,149.91 = 484.03/x
  3. Step 3: Cross multiply
    833.32x = 1,149.91 × 484.03
  4. Step 4: Simplify right side
    833.32x = 556,590.94
  5. Step 5: Solve for x
    x = 556,590.94/833.32
  6. Step 6: Final answer
    x = 667.92

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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.