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Finding the Fourth Proportional to 693.98, 1,039.94 and 303.62

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Solution

The fourth proportional to 693.98, 1,039.94 and 303.62 is: 454.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    693.98 : 1,039.94 = 303.62 : x
  2. Step 2: Convert to fraction form
    693.98/1,039.94 = 303.62/x
  3. Step 3: Cross multiply
    693.98x = 1,039.94 × 303.62
  4. Step 4: Simplify right side
    693.98x = 315,739.87
  5. Step 5: Solve for x
    x = 315,739.87/693.98
  6. Step 6: Final answer
    x = 454.97

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