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Finding the Fourth Proportional to 698.12, 1,046.62 and 601.75

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Solution

The fourth proportional to 698.12, 1,046.62 and 601.75 is: 902.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    698.12 : 1,046.62 = 601.75 : x
  2. Step 2: Convert to fraction form
    698.12/1,046.62 = 601.75/x
  3. Step 3: Cross multiply
    698.12x = 1,046.62 × 601.75
  4. Step 4: Simplify right side
    698.12x = 629,805.65
  5. Step 5: Solve for x
    x = 629,805.65/698.12
  6. Step 6: Final answer
    x = 902.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.