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Finding the Fourth Proportional to 680.00, 937.95 and 539.90

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Solution

The fourth proportional to 680.00, 937.95 and 539.90 is: 744.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    680.00 : 937.95 = 539.90 : x
  2. Step 2: Convert to fraction form
    680.00/937.95 = 539.90/x
  3. Step 3: Cross multiply
    680.00x = 937.95 × 539.90
  4. Step 4: Simplify right side
    680.00x = 506,396.01
  5. Step 5: Solve for x
    x = 506,396.01/680.00
  6. Step 6: Final answer
    x = 744.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.