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Finding the Fourth Proportional to 507.90, 692.05 and 496.66

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Solution

The fourth proportional to 507.90, 692.05 and 496.66 is: 676.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    507.90 : 692.05 = 496.66 : x
  2. Step 2: Convert to fraction form
    507.90/692.05 = 496.66/x
  3. Step 3: Cross multiply
    507.90x = 692.05 × 496.66
  4. Step 4: Simplify right side
    507.90x = 343,713.55
  5. Step 5: Solve for x
    x = 343,713.55/507.90
  6. Step 6: Final answer
    x = 676.73

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.