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Finding the Fourth Proportional to 1,519.92, 2,278.04 and 697.05

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Solution

The fourth proportional to 1,519.92, 2,278.04 and 697.05 is: 1,044.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.92 : 2,278.04 = 697.05 : x
  2. Step 2: Convert to fraction form
    1,519.92/2,278.04 = 697.05/x
  3. Step 3: Cross multiply
    1,519.92x = 2,278.04 × 697.05
  4. Step 4: Simplify right side
    1,519.92x = 1,587,904.30
  5. Step 5: Solve for x
    x = 1,587,904.30/1,519.92
  6. Step 6: Final answer
    x = 1,044.73

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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.