Home / 3,126,821.78-4,691,041.30-1,831,068.45

Finding the Fourth Proportional to 3,126,821.78, 4,691,041.30 and 1,831,068.45

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Solution

The fourth proportional to 3,126,821.78, 4,691,041.30 and 1,831,068.45 is: 2,747,076.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126,821.78 : 4,691,041.30 = 1,831,068.45 : x
  2. Step 2: Convert to fraction form
    3,126,821.78/4,691,041.30 = 1,831,068.45/x
  3. Step 3: Cross multiply
    3,126,821.78x = 4,691,041.30 × 1,831,068.45
  4. Step 4: Simplify right side
    3,126,821.78x = 8,589,617,707,150.76
  5. Step 5: Solve for x
    x = 8,589,617,707,150.76/3,126,821.78
  6. Step 6: Final answer
    x = 2,747,076.21

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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.