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Finding the Fourth Proportional to 730.44, 1,094.11 and 679.87

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Solution

The fourth proportional to 730.44, 1,094.11 and 679.87 is: 1,018.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    730.44 : 1,094.11 = 679.87 : x
  2. Step 2: Convert to fraction form
    730.44/1,094.11 = 679.87/x
  3. Step 3: Cross multiply
    730.44x = 1,094.11 × 679.87
  4. Step 4: Simplify right side
    730.44x = 743,849.16
  5. Step 5: Solve for x
    x = 743,849.16/730.44
  6. Step 6: Final answer
    x = 1,018.35

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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.