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Finding the Fourth Proportional to 680.56, 941.10 and 651.58

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Solution

The fourth proportional to 680.56, 941.10 and 651.58 is: 901.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    680.56 : 941.10 = 651.58 : x
  2. Step 2: Convert to fraction form
    680.56/941.10 = 651.58/x
  3. Step 3: Cross multiply
    680.56x = 941.10 × 651.58
  4. Step 4: Simplify right side
    680.56x = 613,201.94
  5. Step 5: Solve for x
    x = 613,201.94/680.56
  6. Step 6: Final answer
    x = 901.03

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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.