Home / 2,076,179.20-3,114,268.80-1,289,747.20

Finding the Fourth Proportional to 2,076,179.20, 3,114,268.80 and 1,289,747.20

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Solution

The fourth proportional to 2,076,179.20, 3,114,268.80 and 1,289,747.20 is: 1,934,620.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,076,179.20 : 3,114,268.80 = 1,289,747.20 : x
  2. Step 2: Convert to fraction form
    2,076,179.20/3,114,268.80 = 1,289,747.20/x
  3. Step 3: Cross multiply
    2,076,179.20x = 3,114,268.80 × 1,289,747.20
  4. Step 4: Simplify right side
    2,076,179.20x = 4,016,619,464,847.36
  5. Step 5: Solve for x
    x = 4,016,619,464,847.36/2,076,179.20
  6. Step 6: Final answer
    x = 1,934,620.80

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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.