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Finding the Fourth Proportional to 698.85, 964.83 and 437.22

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Solution

The fourth proportional to 698.85, 964.83 and 437.22 is: 603.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    698.85 : 964.83 = 437.22 : x
  2. Step 2: Convert to fraction form
    698.85/964.83 = 437.22/x
  3. Step 3: Cross multiply
    698.85x = 964.83 × 437.22
  4. Step 4: Simplify right side
    698.85x = 421,842.97
  5. Step 5: Solve for x
    x = 421,842.97/698.85
  6. Step 6: Final answer
    x = 603.62

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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.