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Finding the Fourth Proportional to 534.69, 737.66 and 324.79

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Solution

The fourth proportional to 534.69, 737.66 and 324.79 is: 448.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.69 : 737.66 = 324.79 : x
  2. Step 2: Convert to fraction form
    534.69/737.66 = 324.79/x
  3. Step 3: Cross multiply
    534.69x = 737.66 × 324.79
  4. Step 4: Simplify right side
    534.69x = 239,587.71
  5. Step 5: Solve for x
    x = 239,587.71/534.69
  6. Step 6: Final answer
    x = 448.09

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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.