Home / 1,121,874.90-1,682,812.35-673,977.30

Finding the Fourth Proportional to 1,121,874.90, 1,682,812.35 and 673,977.30

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Solution

The fourth proportional to 1,121,874.90, 1,682,812.35 and 673,977.30 is: 1,010,965.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,874.90 : 1,682,812.35 = 673,977.30 : x
  2. Step 2: Convert to fraction form
    1,121,874.90/1,682,812.35 = 673,977.30/x
  3. Step 3: Cross multiply
    1,121,874.90x = 1,682,812.35 × 673,977.30
  4. Step 4: Simplify right side
    1,121,874.90x = 1,134,177,324,059.66
  5. Step 5: Solve for x
    x = 1,134,177,324,059.66/1,121,874.90
  6. Step 6: Final answer
    x = 1,010,965.95

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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.