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Finding the Fourth Proportional to 618.92, 928.48 and 522.33

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Solution

The fourth proportional to 618.92, 928.48 and 522.33 is: 783.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.92 : 928.48 = 522.33 : x
  2. Step 2: Convert to fraction form
    618.92/928.48 = 522.33/x
  3. Step 3: Cross multiply
    618.92x = 928.48 × 522.33
  4. Step 4: Simplify right side
    618.92x = 484,972.96
  5. Step 5: Solve for x
    x = 484,972.96/618.92
  6. Step 6: Final answer
    x = 783.58

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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.