Home / 1,198,738-1,654,305.96-689,439.76

Finding the Fourth Proportional to 1,198,738, 1,654,305.96 and 689,439.76

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Solution

The fourth proportional to 1,198,738, 1,654,305.96 and 689,439.76 is: 951,454.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,738 : 1,654,305.96 = 689,439.76 : x
  2. Step 2: Convert to fraction form
    1,198,738/1,654,305.96 = 689,439.76/x
  3. Step 3: Cross multiply
    1,198,738x = 1,654,305.96 × 689,439.76
  4. Step 4: Simplify right side
    1,198,738x = 1,140,544,304,028.97
  5. Step 5: Solve for x
    x = 1,140,544,304,028.97/1,198,738
  6. Step 6: Final answer
    x = 951,454.20

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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.