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Finding the Fourth Proportional to 1,227.07, 1,840.73 and 496.71

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Solution

The fourth proportional to 1,227.07, 1,840.73 and 496.71 is: 745.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227.07 : 1,840.73 = 496.71 : x
  2. Step 2: Convert to fraction form
    1,227.07/1,840.73 = 496.71/x
  3. Step 3: Cross multiply
    1,227.07x = 1,840.73 × 496.71
  4. Step 4: Simplify right side
    1,227.07x = 914,301.34
  5. Step 5: Solve for x
    x = 914,301.34/1,227.07
  6. Step 6: Final answer
    x = 745.11

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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.