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Finding the Fourth Proportional to 699.98, 1,049.03 and 370.85

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Solution

The fourth proportional to 699.98, 1,049.03 and 370.85 is: 555.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    699.98 : 1,049.03 = 370.85 : x
  2. Step 2: Convert to fraction form
    699.98/1,049.03 = 370.85/x
  3. Step 3: Cross multiply
    699.98x = 1,049.03 × 370.85
  4. Step 4: Simplify right side
    699.98x = 389,027.53
  5. Step 5: Solve for x
    x = 389,027.53/699.98
  6. Step 6: Final answer
    x = 555.77

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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.