Home / 1,661,107.40-2,491,661.10-903,311.90

Finding the Fourth Proportional to 1,661,107.40, 2,491,661.10 and 903,311.90

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Solution

The fourth proportional to 1,661,107.40, 2,491,661.10 and 903,311.90 is: 1,354,967.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,661,107.40 : 2,491,661.10 = 903,311.90 : x
  2. Step 2: Convert to fraction form
    1,661,107.40/2,491,661.10 = 903,311.90/x
  3. Step 3: Cross multiply
    1,661,107.40x = 2,491,661.10 × 903,311.90
  4. Step 4: Simplify right side
    1,661,107.40x = 2,250,747,122,397.09
  5. Step 5: Solve for x
    x = 2,250,747,122,397.09/1,661,107.40
  6. Step 6: Final answer
    x = 1,354,967.85

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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.