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Finding the Fourth Proportional to 1,175,622, 1,764,219.90 and 427,668

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Solution

The fourth proportional to 1,175,622, 1,764,219.90 and 427,668 is: 641,788.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175,622 : 1,764,219.90 = 427,668 : x
  2. Step 2: Convert to fraction form
    1,175,622/1,764,219.90 = 427,668/x
  3. Step 3: Cross multiply
    1,175,622x = 1,764,219.90 × 427,668
  4. Step 4: Simplify right side
    1,175,622x = 754,500,396,193.20
  5. Step 5: Solve for x
    x = 754,500,396,193.20/1,175,622
  6. Step 6: Final answer
    x = 641,788.26

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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.