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Finding the Fourth Proportional to 833.01, 1,149.93 and 518.70

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Solution

The fourth proportional to 833.01, 1,149.93 and 518.70 is: 716.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    833.01 : 1,149.93 = 518.70 : x
  2. Step 2: Convert to fraction form
    833.01/1,149.93 = 518.70/x
  3. Step 3: Cross multiply
    833.01x = 1,149.93 × 518.70
  4. Step 4: Simplify right side
    833.01x = 596,468.69
  5. Step 5: Solve for x
    x = 596,468.69/833.01
  6. Step 6: Final answer
    x = 716.04

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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.