Home / 1,198,922.80-1,798,358.84-389,306.34

Finding the Fourth Proportional to 1,198,922.80, 1,798,358.84 and 389,306.34

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Solution

The fourth proportional to 1,198,922.80, 1,798,358.84 and 389,306.34 is: 583,951.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,922.80 : 1,798,358.84 = 389,306.34 : x
  2. Step 2: Convert to fraction form
    1,198,922.80/1,798,358.84 = 389,306.34/x
  3. Step 3: Cross multiply
    1,198,922.80x = 1,798,358.84 × 389,306.34
  4. Step 4: Simplify right side
    1,198,922.80x = 700,112,498,007.05
  5. Step 5: Solve for x
    x = 700,112,498,007.05/1,198,922.80
  6. Step 6: Final answer
    x = 583,951.28

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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.