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Finding the Fourth Proportional to 701.15, 1,049.90 and 374.92

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Solution

The fourth proportional to 701.15, 1,049.90 and 374.92 is: 561.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.15 : 1,049.90 = 374.92 : x
  2. Step 2: Convert to fraction form
    701.15/1,049.90 = 374.92/x
  3. Step 3: Cross multiply
    701.15x = 1,049.90 × 374.92
  4. Step 4: Simplify right side
    701.15x = 393,624.01
  5. Step 5: Solve for x
    x = 393,624.01/701.15
  6. Step 6: Final answer
    x = 561.40

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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.