Home / 1,338,079.20-1,848,081.80-881,235.92

Finding the Fourth Proportional to 1,338,079.20, 1,848,081.80 and 881,235.92

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Solution

The fourth proportional to 1,338,079.20, 1,848,081.80 and 881,235.92 is: 1,217,114.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,079.20 : 1,848,081.80 = 881,235.92 : x
  2. Step 2: Convert to fraction form
    1,338,079.20/1,848,081.80 = 881,235.92/x
  3. Step 3: Cross multiply
    1,338,079.20x = 1,848,081.80 × 881,235.92
  4. Step 4: Simplify right side
    1,338,079.20x = 1,628,596,065,258.26
  5. Step 5: Solve for x
    x = 1,628,596,065,258.26/1,338,079.20
  6. Step 6: Final answer
    x = 1,217,114.85

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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.