Home / 1,086,871.20-1,631,535.60-838,653.60

Finding the Fourth Proportional to 1,086,871.20, 1,631,535.60 and 838,653.60

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Solution

The fourth proportional to 1,086,871.20, 1,631,535.60 and 838,653.60 is: 1,258,928.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,871.20 : 1,631,535.60 = 838,653.60 : x
  2. Step 2: Convert to fraction form
    1,086,871.20/1,631,535.60 = 838,653.60/x
  3. Step 3: Cross multiply
    1,086,871.20x = 1,631,535.60 × 838,653.60
  4. Step 4: Simplify right side
    1,086,871.20x = 1,368,293,204,468.16
  5. Step 5: Solve for x
    x = 1,368,293,204,468.16/1,086,871.20
  6. Step 6: Final answer
    x = 1,258,928.57

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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.