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Finding the Fourth Proportional to 697.96, 961.06 and 550.12

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Solution

The fourth proportional to 697.96, 961.06 and 550.12 is: 757.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.96 : 961.06 = 550.12 : x
  2. Step 2: Convert to fraction form
    697.96/961.06 = 550.12/x
  3. Step 3: Cross multiply
    697.96x = 961.06 × 550.12
  4. Step 4: Simplify right side
    697.96x = 528,698.33
  5. Step 5: Solve for x
    x = 528,698.33/697.96
  6. Step 6: Final answer
    x = 757.49

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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.