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Finding the Fourth Proportional to 716.08, 1,074.38 and 283.52

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Solution

The fourth proportional to 716.08, 1,074.38 and 283.52 is: 425.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    716.08 : 1,074.38 = 283.52 : x
  2. Step 2: Convert to fraction form
    716.08/1,074.38 = 283.52/x
  3. Step 3: Cross multiply
    716.08x = 1,074.38 × 283.52
  4. Step 4: Simplify right side
    716.08x = 304,608.22
  5. Step 5: Solve for x
    x = 304,608.22/716.08
  6. Step 6: Final answer
    x = 425.38

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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.