Home / 1,728,163.80-2,587,709.70-1,219,980.60

Finding the Fourth Proportional to 1,728,163.80, 2,587,709.70 and 1,219,980.60

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Solution

The fourth proportional to 1,728,163.80, 2,587,709.70 and 1,219,980.60 is: 1,826,768.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728,163.80 : 2,587,709.70 = 1,219,980.60 : x
  2. Step 2: Convert to fraction form
    1,728,163.80/2,587,709.70 = 1,219,980.60/x
  3. Step 3: Cross multiply
    1,728,163.80x = 2,587,709.70 × 1,219,980.60
  4. Step 4: Simplify right side
    1,728,163.80x = 3,156,955,632,431.82
  5. Step 5: Solve for x
    x = 3,156,955,632,431.82/1,728,163.80
  6. Step 6: Final answer
    x = 1,826,768.75

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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.