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Finding the Fourth Proportional to 522.01, 778.22 and 480.90

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Solution

The fourth proportional to 522.01, 778.22 and 480.90 is: 716.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    522.01 : 778.22 = 480.90 : x
  2. Step 2: Convert to fraction form
    522.01/778.22 = 480.90/x
  3. Step 3: Cross multiply
    522.01x = 778.22 × 480.90
  4. Step 4: Simplify right side
    522.01x = 374,246.00
  5. Step 5: Solve for x
    x = 374,246.00/522.01
  6. Step 6: Final answer
    x = 716.93

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1.5x scale

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.