Home / 1,189,133.62-1,640,318.11-758,928.85

Finding the Fourth Proportional to 1,189,133.62, 1,640,318.11 and 758,928.85

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Solution

The fourth proportional to 1,189,133.62, 1,640,318.11 and 758,928.85 is: 1,046,883.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,133.62 : 1,640,318.11 = 758,928.85 : x
  2. Step 2: Convert to fraction form
    1,189,133.62/1,640,318.11 = 758,928.85/x
  3. Step 3: Cross multiply
    1,189,133.62x = 1,640,318.11 × 758,928.85
  4. Step 4: Simplify right side
    1,189,133.62x = 1,244,884,736,856.47
  5. Step 5: Solve for x
    x = 1,244,884,736,856.47/1,189,133.62
  6. Step 6: Final answer
    x = 1,046,883.81

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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.