Home / 1,211,441.20-1,813,662.60-739,049.20

Finding the Fourth Proportional to 1,211,441.20, 1,813,662.60 and 739,049.20

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Solution

The fourth proportional to 1,211,441.20, 1,813,662.60 and 739,049.20 is: 1,106,439.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,441.20 : 1,813,662.60 = 739,049.20 : x
  2. Step 2: Convert to fraction form
    1,211,441.20/1,813,662.60 = 739,049.20/x
  3. Step 3: Cross multiply
    1,211,441.20x = 1,813,662.60 × 739,049.20
  4. Step 4: Simplify right side
    1,211,441.20x = 1,340,385,893,599.92
  5. Step 5: Solve for x
    x = 1,340,385,893,599.92/1,211,441.20
  6. Step 6: Final answer
    x = 1,106,439.09

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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.