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Finding the Fourth Proportional to 681.32, 941.50 and 556.94

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Solution

The fourth proportional to 681.32, 941.50 and 556.94 is: 769.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    681.32 : 941.50 = 556.94 : x
  2. Step 2: Convert to fraction form
    681.32/941.50 = 556.94/x
  3. Step 3: Cross multiply
    681.32x = 941.50 × 556.94
  4. Step 4: Simplify right side
    681.32x = 524,355.00
  5. Step 5: Solve for x
    x = 524,355.00/681.32
  6. Step 6: Final answer
    x = 769.61

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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.