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Finding the Fourth Proportional to 1,779.14, 2,668.77 and 480.62

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Solution

The fourth proportional to 1,779.14, 2,668.77 and 480.62 is: 720.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779.14 : 2,668.77 = 480.62 : x
  2. Step 2: Convert to fraction form
    1,779.14/2,668.77 = 480.62/x
  3. Step 3: Cross multiply
    1,779.14x = 2,668.77 × 480.62
  4. Step 4: Simplify right side
    1,779.14x = 1,282,664.24
  5. Step 5: Solve for x
    x = 1,282,664.24/1,779.14
  6. Step 6: Final answer
    x = 720.95

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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.