Home / 1,198,921.80-1,798,357.34-389,305.34

Finding the Fourth Proportional to 1,198,921.80, 1,798,357.34 and 389,305.34

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Solution

The fourth proportional to 1,198,921.80, 1,798,357.34 and 389,305.34 is: 583,949.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,921.80 : 1,798,357.34 = 389,305.34 : x
  2. Step 2: Convert to fraction form
    1,198,921.80/1,798,357.34 = 389,305.34/x
  3. Step 3: Cross multiply
    1,198,921.80x = 1,798,357.34 × 389,305.34
  4. Step 4: Simplify right side
    1,198,921.80x = 700,110,114,415.51
  5. Step 5: Solve for x
    x = 700,110,114,415.51/1,198,921.80
  6. Step 6: Final answer
    x = 583,949.77

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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.