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Finding the Fourth Proportional to 1,227.69, 1,841.67 and 497.16

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Solution

The fourth proportional to 1,227.69, 1,841.67 and 497.16 is: 745.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227.69 : 1,841.67 = 497.16 : x
  2. Step 2: Convert to fraction form
    1,227.69/1,841.67 = 497.16/x
  3. Step 3: Cross multiply
    1,227.69x = 1,841.67 × 497.16
  4. Step 4: Simplify right side
    1,227.69x = 915,604.66
  5. Step 5: Solve for x
    x = 915,604.66/1,227.69
  6. Step 6: Final answer
    x = 745.79

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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.