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Finding the Fourth Proportional to 849.92, 1,172.81 and 601.38

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Solution

The fourth proportional to 849.92, 1,172.81 and 601.38 is: 829.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    849.92 : 1,172.81 = 601.38 : x
  2. Step 2: Convert to fraction form
    849.92/1,172.81 = 601.38/x
  3. Step 3: Cross multiply
    849.92x = 1,172.81 × 601.38
  4. Step 4: Simplify right side
    849.92x = 705,305.98
  5. Step 5: Solve for x
    x = 705,305.98/849.92
  6. Step 6: Final answer
    x = 829.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.