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Finding the Fourth Proportional to 697.04, 961.94 and 417.32

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Solution

The fourth proportional to 697.04, 961.94 and 417.32 is: 575.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.04 : 961.94 = 417.32 : x
  2. Step 2: Convert to fraction form
    697.04/961.94 = 417.32/x
  3. Step 3: Cross multiply
    697.04x = 961.94 × 417.32
  4. Step 4: Simplify right side
    697.04x = 401,429.90
  5. Step 5: Solve for x
    x = 401,429.90/697.04
  6. Step 6: Final answer
    x = 575.91

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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.