Home / 1,941,778.72-2,912,353.21-917,107.89

Finding the Fourth Proportional to 1,941,778.72, 2,912,353.21 and 917,107.89

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Solution

The fourth proportional to 1,941,778.72, 2,912,353.21 and 917,107.89 is: 1,375,513.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941,778.72 : 2,912,353.21 = 917,107.89 : x
  2. Step 2: Convert to fraction form
    1,941,778.72/2,912,353.21 = 917,107.89/x
  3. Step 3: Cross multiply
    1,941,778.72x = 2,912,353.21 × 917,107.89
  4. Step 4: Simplify right side
    1,941,778.72x = 2,670,942,102,772.29
  5. Step 5: Solve for x
    x = 2,670,942,102,772.29/1,941,778.72
  6. Step 6: Final answer
    x = 1,375,513.12

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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.