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Finding the Fourth Proportional to 624.84, 936.21 and 441.39

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Solution

The fourth proportional to 624.84, 936.21 and 441.39 is: 661.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.84 : 936.21 = 441.39 : x
  2. Step 2: Convert to fraction form
    624.84/936.21 = 441.39/x
  3. Step 3: Cross multiply
    624.84x = 936.21 × 441.39
  4. Step 4: Simplify right side
    624.84x = 413,233.73
  5. Step 5: Solve for x
    x = 413,233.73/624.84
  6. Step 6: Final answer
    x = 661.34

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1.5x scale

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.