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Finding the Fourth Proportional to 697.66, 960.36 and 603.09

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Solution

The fourth proportional to 697.66, 960.36 and 603.09 is: 830.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.66 : 960.36 = 603.09 : x
  2. Step 2: Convert to fraction form
    697.66/960.36 = 603.09/x
  3. Step 3: Cross multiply
    697.66x = 960.36 × 603.09
  4. Step 4: Simplify right side
    697.66x = 579,180.50
  5. Step 5: Solve for x
    x = 579,180.50/697.66
  6. Step 6: Final answer
    x = 830.17

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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.