Home / 1,179,855.32-1,628,325.20-721,238.39

Finding the Fourth Proportional to 1,179,855.32, 1,628,325.20 and 721,238.39

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Solution

The fourth proportional to 1,179,855.32, 1,628,325.20 and 721,238.39 is: 995,385.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,855.32 : 1,628,325.20 = 721,238.39 : x
  2. Step 2: Convert to fraction form
    1,179,855.32/1,628,325.20 = 721,238.39/x
  3. Step 3: Cross multiply
    1,179,855.32x = 1,628,325.20 × 721,238.39
  4. Step 4: Simplify right side
    1,179,855.32x = 1,174,410,639,305.90
  5. Step 5: Solve for x
    x = 1,174,410,639,305.90/1,179,855.32
  6. Step 6: Final answer
    x = 995,385.30

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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.