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Finding the Fourth Proportional to 697.44, 960.50 and 682.32

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Solution

The fourth proportional to 697.44, 960.50 and 682.32 is: 939.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.44 : 960.50 = 682.32 : x
  2. Step 2: Convert to fraction form
    697.44/960.50 = 682.32/x
  3. Step 3: Cross multiply
    697.44x = 960.50 × 682.32
  4. Step 4: Simplify right side
    697.44x = 655,368.36
  5. Step 5: Solve for x
    x = 655,368.36/697.44
  6. Step 6: Final answer
    x = 939.68

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1.5x scale

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.