Home / 2,078,817.80-3,115,893.90-1,180,689.80

Finding the Fourth Proportional to 2,078,817.80, 3,115,893.90 and 1,180,689.80

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Solution

The fourth proportional to 2,078,817.80, 3,115,893.90 and 1,180,689.80 is: 1,769,709.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,817.80 : 3,115,893.90 = 1,180,689.80 : x
  2. Step 2: Convert to fraction form
    2,078,817.80/3,115,893.90 = 1,180,689.80/x
  3. Step 3: Cross multiply
    2,078,817.80x = 3,115,893.90 × 1,180,689.80
  4. Step 4: Simplify right side
    2,078,817.80x = 3,678,904,145,612.22
  5. Step 5: Solve for x
    x = 3,678,904,145,612.22/2,078,817.80
  6. Step 6: Final answer
    x = 1,769,709.76

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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.