Home / 1,384,140.20-2,073,974.70-783,314.60

Finding the Fourth Proportional to 1,384,140.20, 2,073,974.70 and 783,314.60

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Solution

The fourth proportional to 1,384,140.20, 2,073,974.70 and 783,314.60 is: 1,173,706.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,140.20 : 2,073,974.70 = 783,314.60 : x
  2. Step 2: Convert to fraction form
    1,384,140.20/2,073,974.70 = 783,314.60/x
  3. Step 3: Cross multiply
    1,384,140.20x = 2,073,974.70 × 783,314.60
  4. Step 4: Simplify right side
    1,384,140.20x = 1,624,574,662,540.62
  5. Step 5: Solve for x
    x = 1,624,574,662,540.62/1,384,140.20
  6. Step 6: Final answer
    x = 1,173,706.73

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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.