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Finding the Fourth Proportional to 743.08, 1,112.28 and 468.22

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Solution

The fourth proportional to 743.08, 1,112.28 and 468.22 is: 700.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    743.08 : 1,112.28 = 468.22 : x
  2. Step 2: Convert to fraction form
    743.08/1,112.28 = 468.22/x
  3. Step 3: Cross multiply
    743.08x = 1,112.28 × 468.22
  4. Step 4: Simplify right side
    743.08x = 520,791.74
  5. Step 5: Solve for x
    x = 520,791.74/743.08
  6. Step 6: Final answer
    x = 700.86

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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.