Home / 2,807,694.70-4,211,542.05-1,387,456.90

Finding the Fourth Proportional to 2,807,694.70, 4,211,542.05 and 1,387,456.90

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Solution

The fourth proportional to 2,807,694.70, 4,211,542.05 and 1,387,456.90 is: 2,081,185.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,807,694.70 : 4,211,542.05 = 1,387,456.90 : x
  2. Step 2: Convert to fraction form
    2,807,694.70/4,211,542.05 = 1,387,456.90/x
  3. Step 3: Cross multiply
    2,807,694.70x = 4,211,542.05 × 1,387,456.90
  4. Step 4: Simplify right side
    2,807,694.70x = 5,843,333,076,912.65
  5. Step 5: Solve for x
    x = 5,843,333,076,912.65/2,807,694.70
  6. Step 6: Final answer
    x = 2,081,185.35

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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.