Home / 2,076,865.40-3,113,147.70-1,128,231.80

Finding the Fourth Proportional to 2,076,865.40, 3,113,147.70 and 1,128,231.80

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Solution

The fourth proportional to 2,076,865.40, 3,113,147.70 and 1,128,231.80 is: 1,691,179.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,076,865.40 : 3,113,147.70 = 1,128,231.80 : x
  2. Step 2: Convert to fraction form
    2,076,865.40/3,113,147.70 = 1,128,231.80/x
  3. Step 3: Cross multiply
    2,076,865.40x = 3,113,147.70 × 1,128,231.80
  4. Step 4: Simplify right side
    2,076,865.40x = 3,512,352,233,236.86
  5. Step 5: Solve for x
    x = 3,512,352,233,236.86/2,076,865.40
  6. Step 6: Final answer
    x = 1,691,179.52

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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.