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Finding the Fourth Proportional to 522.97, 779.72 and 517.57

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Solution

The fourth proportional to 522.97, 779.72 and 517.57 is: 771.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    522.97 : 779.72 = 517.57 : x
  2. Step 2: Convert to fraction form
    522.97/779.72 = 517.57/x
  3. Step 3: Cross multiply
    522.97x = 779.72 × 517.57
  4. Step 4: Simplify right side
    522.97x = 403,559.68
  5. Step 5: Solve for x
    x = 403,559.68/522.97
  6. Step 6: Final answer
    x = 771.67

Related Problems

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Double scale
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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.