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Finding the Fourth Proportional to 726.09, 1,088.24 and 379.37

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Solution

The fourth proportional to 726.09, 1,088.24 and 379.37 is: 568.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    726.09 : 1,088.24 = 379.37 : x
  2. Step 2: Convert to fraction form
    726.09/1,088.24 = 379.37/x
  3. Step 3: Cross multiply
    726.09x = 1,088.24 × 379.37
  4. Step 4: Simplify right side
    726.09x = 412,838.27
  5. Step 5: Solve for x
    x = 412,838.27/726.09
  6. Step 6: Final answer
    x = 568.58

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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.