Home / 2,121,446.80-3,179,405.40-984,077.20

Finding the Fourth Proportional to 2,121,446.80, 3,179,405.40 and 984,077.20

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Solution

The fourth proportional to 2,121,446.80, 3,179,405.40 and 984,077.20 is: 1,474,833.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121,446.80 : 3,179,405.40 = 984,077.20 : x
  2. Step 2: Convert to fraction form
    2,121,446.80/3,179,405.40 = 984,077.20/x
  3. Step 3: Cross multiply
    2,121,446.80x = 3,179,405.40 × 984,077.20
  4. Step 4: Simplify right side
    2,121,446.80x = 3,128,780,363,696.88
  5. Step 5: Solve for x
    x = 3,128,780,363,696.88/2,121,446.80
  6. Step 6: Final answer
    x = 1,474,833.29

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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.