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Finding the Fourth Proportional to 554.08, 834.41 and 517.63

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Solution

The fourth proportional to 554.08, 834.41 and 517.63 is: 779.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.08 : 834.41 = 517.63 : x
  2. Step 2: Convert to fraction form
    554.08/834.41 = 517.63/x
  3. Step 3: Cross multiply
    554.08x = 834.41 × 517.63
  4. Step 4: Simplify right side
    554.08x = 431,915.65
  5. Step 5: Solve for x
    x = 431,915.65/554.08
  6. Step 6: Final answer
    x = 779.52

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.