Home / 2,187,072.30-3,280,608.45-1,384,005.90

Finding the Fourth Proportional to 2,187,072.30, 3,280,608.45 and 1,384,005.90

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Solution

The fourth proportional to 2,187,072.30, 3,280,608.45 and 1,384,005.90 is: 2,076,008.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,072.30 : 3,280,608.45 = 1,384,005.90 : x
  2. Step 2: Convert to fraction form
    2,187,072.30/3,280,608.45 = 1,384,005.90/x
  3. Step 3: Cross multiply
    2,187,072.30x = 3,280,608.45 × 1,384,005.90
  4. Step 4: Simplify right side
    2,187,072.30x = 4,540,381,450,389.85
  5. Step 5: Solve for x
    x = 4,540,381,450,389.85/2,187,072.30
  6. Step 6: Final answer
    x = 2,076,008.85

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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.