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Finding the Fourth Proportional to 526.35, 721.11 and 506.65

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Solution

The fourth proportional to 526.35, 721.11 and 506.65 is: 694.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.35 : 721.11 = 506.65 : x
  2. Step 2: Convert to fraction form
    526.35/721.11 = 506.65/x
  3. Step 3: Cross multiply
    526.35x = 721.11 × 506.65
  4. Step 4: Simplify right side
    526.35x = 365,344.24
  5. Step 5: Solve for x
    x = 365,344.24/526.35
  6. Step 6: Final answer
    x = 694.11

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.