Home / 1,297,583.28-1,790,817.12-1,079,406.72

Finding the Fourth Proportional to 1,297,583.28, 1,790,817.12 and 1,079,406.72

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Solution

The fourth proportional to 1,297,583.28, 1,790,817.12 and 1,079,406.72 is: 1,489,707.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,583.28 : 1,790,817.12 = 1,079,406.72 : x
  2. Step 2: Convert to fraction form
    1,297,583.28/1,790,817.12 = 1,079,406.72/x
  3. Step 3: Cross multiply
    1,297,583.28x = 1,790,817.12 × 1,079,406.72
  4. Step 4: Simplify right side
    1,297,583.28x = 1,933,020,033,619.05
  5. Step 5: Solve for x
    x = 1,933,020,033,619.05/1,297,583.28
  6. Step 6: Final answer
    x = 1,489,707.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.