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Finding the Fourth Proportional to 1,141.08, 1,711.74 and 410.72

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Solution

The fourth proportional to 1,141.08, 1,711.74 and 410.72 is: 616.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,141.08 : 1,711.74 = 410.72 : x
  2. Step 2: Convert to fraction form
    1,141.08/1,711.74 = 410.72/x
  3. Step 3: Cross multiply
    1,141.08x = 1,711.74 × 410.72
  4. Step 4: Simplify right side
    1,141.08x = 703,045.85
  5. Step 5: Solve for x
    x = 703,045.85/1,141.08
  6. Step 6: Final answer
    x = 616.12

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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.