Home / 2,078,769.80-3,115,821.90-1,180,641.80

Finding the Fourth Proportional to 2,078,769.80, 3,115,821.90 and 1,180,641.80

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Solution

The fourth proportional to 2,078,769.80, 3,115,821.90 and 1,180,641.80 is: 1,769,637.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,769.80 : 3,115,821.90 = 1,180,641.80 : x
  2. Step 2: Convert to fraction form
    2,078,769.80/3,115,821.90 = 1,180,641.80/x
  3. Step 3: Cross multiply
    2,078,769.80x = 3,115,821.90 × 1,180,641.80
  4. Step 4: Simplify right side
    2,078,769.80x = 3,678,669,576,495.42
  5. Step 5: Solve for x
    x = 3,678,669,576,495.42/2,078,769.80
  6. Step 6: Final answer
    x = 1,769,637.78

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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.