Home / 1,912,589.28-2,639,268.72-1,052,986.32

Finding the Fourth Proportional to 1,912,589.28, 2,639,268.72 and 1,052,986.32

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Solution

The fourth proportional to 1,912,589.28, 2,639,268.72 and 1,052,986.32 is: 1,453,063.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,589.28 : 2,639,268.72 = 1,052,986.32 : x
  2. Step 2: Convert to fraction form
    1,912,589.28/2,639,268.72 = 1,052,986.32/x
  3. Step 3: Cross multiply
    1,912,589.28x = 2,639,268.72 × 1,052,986.32
  4. Step 4: Simplify right side
    1,912,589.28x = 2,779,113,856,963.91
  5. Step 5: Solve for x
    x = 2,779,113,856,963.91/1,912,589.28
  6. Step 6: Final answer
    x = 1,453,063.60

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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.