Home / 1,215,273.20-1,821,743.40-945,251.60

Finding the Fourth Proportional to 1,215,273.20, 1,821,743.40 and 945,251.60

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Solution

The fourth proportional to 1,215,273.20, 1,821,743.40 and 945,251.60 is: 1,416,970.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,273.20 : 1,821,743.40 = 945,251.60 : x
  2. Step 2: Convert to fraction form
    1,215,273.20/1,821,743.40 = 945,251.60/x
  3. Step 3: Cross multiply
    1,215,273.20x = 1,821,743.40 × 945,251.60
  4. Step 4: Simplify right side
    1,215,273.20x = 1,722,005,863,639.44
  5. Step 5: Solve for x
    x = 1,722,005,863,639.44/1,215,273.20
  6. Step 6: Final answer
    x = 1,416,970.16

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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.