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Finding the Fourth Proportional to 737.23, 1,017.37 and 405.67

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Solution

The fourth proportional to 737.23, 1,017.37 and 405.67 is: 559.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    737.23 : 1,017.37 = 405.67 : x
  2. Step 2: Convert to fraction form
    737.23/1,017.37 = 405.67/x
  3. Step 3: Cross multiply
    737.23x = 1,017.37 × 405.67
  4. Step 4: Simplify right side
    737.23x = 412,718.36
  5. Step 5: Solve for x
    x = 412,718.36/737.23
  6. Step 6: Final answer
    x = 559.83

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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.