Home / 2,181,872.15-3,273,323.40-685,964.15

Finding the Fourth Proportional to 2,181,872.15, 3,273,323.40 and 685,964.15

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Solution

The fourth proportional to 2,181,872.15, 3,273,323.40 and 685,964.15 is: 1,029,108.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181,872.15 : 3,273,323.40 = 685,964.15 : x
  2. Step 2: Convert to fraction form
    2,181,872.15/3,273,323.40 = 685,964.15/x
  3. Step 3: Cross multiply
    2,181,872.15x = 3,273,323.40 × 685,964.15
  4. Step 4: Simplify right side
    2,181,872.15x = 2,245,382,487,389.49
  5. Step 5: Solve for x
    x = 2,245,382,487,389.49/2,181,872.15
  6. Step 6: Final answer
    x = 1,029,108.19

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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.