Home / 1,728,859.87-2,586,867.20-1,086,154.57

Finding the Fourth Proportional to 1,728,859.87, 2,586,867.20 and 1,086,154.57

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Solution

The fourth proportional to 1,728,859.87, 2,586,867.20 and 1,086,154.57 is: 1,625,196.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728,859.87 : 2,586,867.20 = 1,086,154.57 : x
  2. Step 2: Convert to fraction form
    1,728,859.87/2,586,867.20 = 1,086,154.57/x
  3. Step 3: Cross multiply
    1,728,859.87x = 2,586,867.20 × 1,086,154.57
  4. Step 4: Simplify right side
    1,728,859.87x = 2,809,737,631,263.10
  5. Step 5: Solve for x
    x = 2,809,737,631,263.10/1,728,859.87
  6. Step 6: Final answer
    x = 1,625,196.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.