Home / 1,868,895.92-2,578,690.68-1,189,584.56

Finding the Fourth Proportional to 1,868,895.92, 2,578,690.68 and 1,189,584.56

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Solution

The fourth proportional to 1,868,895.92, 2,578,690.68 and 1,189,584.56 is: 1,641,381.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868,895.92 : 2,578,690.68 = 1,189,584.56 : x
  2. Step 2: Convert to fraction form
    1,868,895.92/2,578,690.68 = 1,189,584.56/x
  3. Step 3: Cross multiply
    1,868,895.92x = 2,578,690.68 × 1,189,584.56
  4. Step 4: Simplify right side
    1,868,895.92x = 3,067,570,617,943.90
  5. Step 5: Solve for x
    x = 3,067,570,617,943.90/1,868,895.92
  6. Step 6: Final answer
    x = 1,641,381.19

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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.