Home / 2,119,737.60-3,174,940.80-1,276,819.20

Finding the Fourth Proportional to 2,119,737.60, 3,174,940.80 and 1,276,819.20

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Solution

The fourth proportional to 2,119,737.60, 3,174,940.80 and 1,276,819.20 is: 1,912,418.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119,737.60 : 3,174,940.80 = 1,276,819.20 : x
  2. Step 2: Convert to fraction form
    2,119,737.60/3,174,940.80 = 1,276,819.20/x
  3. Step 3: Cross multiply
    2,119,737.60x = 3,174,940.80 × 1,276,819.20
  4. Step 4: Simplify right side
    2,119,737.60x = 4,053,825,372,303.36
  5. Step 5: Solve for x
    x = 4,053,825,372,303.36/2,119,737.60
  6. Step 6: Final answer
    x = 1,912,418.49

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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.