Home / 2,076,854.40-3,113,131.20-1,128,220.80

Finding the Fourth Proportional to 2,076,854.40, 3,113,131.20 and 1,128,220.80

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Solution

The fourth proportional to 2,076,854.40, 3,113,131.20 and 1,128,220.80 is: 1,691,163.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,076,854.40 : 3,113,131.20 = 1,128,220.80 : x
  2. Step 2: Convert to fraction form
    2,076,854.40/3,113,131.20 = 1,128,220.80/x
  3. Step 3: Cross multiply
    2,076,854.40x = 3,113,131.20 × 1,128,220.80
  4. Step 4: Simplify right side
    2,076,854.40x = 3,512,299,372,968.96
  5. Step 5: Solve for x
    x = 3,512,299,372,968.96/2,076,854.40
  6. Step 6: Final answer
    x = 1,691,163.03

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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.