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Finding the Fourth Proportional to 722.44, 1,083.31 and 503.17

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Solution

The fourth proportional to 722.44, 1,083.31 and 503.17 is: 754.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    722.44 : 1,083.31 = 503.17 : x
  2. Step 2: Convert to fraction form
    722.44/1,083.31 = 503.17/x
  3. Step 3: Cross multiply
    722.44x = 1,083.31 × 503.17
  4. Step 4: Simplify right side
    722.44x = 545,094.87
  5. Step 5: Solve for x
    x = 545,094.87/722.44
  6. Step 6: Final answer
    x = 754.51

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Double scale
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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.