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Finding the Fourth Proportional to 522.08, 778.86 and 481.07

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Solution

The fourth proportional to 522.08, 778.86 and 481.07 is: 717.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    522.08 : 778.86 = 481.07 : x
  2. Step 2: Convert to fraction form
    522.08/778.86 = 481.07/x
  3. Step 3: Cross multiply
    522.08x = 778.86 × 481.07
  4. Step 4: Simplify right side
    522.08x = 374,686.77
  5. Step 5: Solve for x
    x = 374,686.77/522.08
  6. Step 6: Final answer
    x = 717.68

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.