Home / 1,311,182.40-1,967,551.20-863,187.60

Finding the Fourth Proportional to 1,311,182.40, 1,967,551.20 and 863,187.60

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Solution

The fourth proportional to 1,311,182.40, 1,967,551.20 and 863,187.60 is: 1,295,293.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,182.40 : 1,967,551.20 = 863,187.60 : x
  2. Step 2: Convert to fraction form
    1,311,182.40/1,967,551.20 = 863,187.60/x
  3. Step 3: Cross multiply
    1,311,182.40x = 1,967,551.20 × 863,187.60
  4. Step 4: Simplify right side
    1,311,182.40x = 1,698,365,798,205.12
  5. Step 5: Solve for x
    x = 1,698,365,798,205.12/1,311,182.40
  6. Step 6: Final answer
    x = 1,295,293.32

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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.