Home / 1,981,872.12-2,735,019.57-1,122,610.77

Finding the Fourth Proportional to 1,981,872.12, 2,735,019.57 and 1,122,610.77

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Solution

The fourth proportional to 1,981,872.12, 2,735,019.57 and 1,122,610.77 is: 1,549,223.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,872.12 : 2,735,019.57 = 1,122,610.77 : x
  2. Step 2: Convert to fraction form
    1,981,872.12/2,735,019.57 = 1,122,610.77/x
  3. Step 3: Cross multiply
    1,981,872.12x = 2,735,019.57 × 1,122,610.77
  4. Step 4: Simplify right side
    1,981,872.12x = 3,070,362,425,442.77
  5. Step 5: Solve for x
    x = 3,070,362,425,442.77/1,981,872.12
  6. Step 6: Final answer
    x = 1,549,223.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.