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Finding the Fourth Proportional to 462.28, 694.03 and 424.07

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Solution

The fourth proportional to 462.28, 694.03 and 424.07 is: 636.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.28 : 694.03 = 424.07 : x
  2. Step 2: Convert to fraction form
    462.28/694.03 = 424.07/x
  3. Step 3: Cross multiply
    462.28x = 694.03 × 424.07
  4. Step 4: Simplify right side
    462.28x = 294,320.07
  5. Step 5: Solve for x
    x = 294,320.07/462.28
  6. Step 6: Final answer
    x = 636.67

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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.