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Finding the Fourth Proportional to 730.21, 1,093.99 and 626.53

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Solution

The fourth proportional to 730.21, 1,093.99 and 626.53 is: 938.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    730.21 : 1,093.99 = 626.53 : x
  2. Step 2: Convert to fraction form
    730.21/1,093.99 = 626.53/x
  3. Step 3: Cross multiply
    730.21x = 1,093.99 × 626.53
  4. Step 4: Simplify right side
    730.21x = 685,408.95
  5. Step 5: Solve for x
    x = 685,408.95/730.21
  6. Step 6: Final answer
    x = 938.65

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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.