Home / 1,383,073.18-1,907,567.76-1,228,187.38

Finding the Fourth Proportional to 1,383,073.18, 1,907,567.76 and 1,228,187.38

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Solution

The fourth proportional to 1,383,073.18, 1,907,567.76 and 1,228,187.38 is: 1,693,945.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,073.18 : 1,907,567.76 = 1,228,187.38 : x
  2. Step 2: Convert to fraction form
    1,383,073.18/1,907,567.76 = 1,228,187.38/x
  3. Step 3: Cross multiply
    1,383,073.18x = 1,907,567.76 × 1,228,187.38
  4. Step 4: Simplify right side
    1,383,073.18x = 2,342,850,649,326.87
  5. Step 5: Solve for x
    x = 2,342,850,649,326.87/1,383,073.18
  6. Step 6: Final answer
    x = 1,693,945.54

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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.