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Finding the Fourth Proportional to 740.83, 1,110.28 and 329.95

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Solution

The fourth proportional to 740.83, 1,110.28 and 329.95 is: 494.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    740.83 : 1,110.28 = 329.95 : x
  2. Step 2: Convert to fraction form
    740.83/1,110.28 = 329.95/x
  3. Step 3: Cross multiply
    740.83x = 1,110.28 × 329.95
  4. Step 4: Simplify right side
    740.83x = 366,329.68
  5. Step 5: Solve for x
    x = 366,329.68/740.83
  6. Step 6: Final answer
    x = 494.49

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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.