Home / 2,885,969.70-3,980,902.94-1,905,917.76

Finding the Fourth Proportional to 2,885,969.70, 3,980,902.94 and 1,905,917.76

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Solution

The fourth proportional to 2,885,969.70, 3,980,902.94 and 1,905,917.76 is: 2,629,020.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885,969.70 : 3,980,902.94 = 1,905,917.76 : x
  2. Step 2: Convert to fraction form
    2,885,969.70/3,980,902.94 = 1,905,917.76/x
  3. Step 3: Cross multiply
    2,885,969.70x = 3,980,902.94 × 1,905,917.76
  4. Step 4: Simplify right side
    2,885,969.70x = 7,587,273,626,728.20
  5. Step 5: Solve for x
    x = 7,587,273,626,728.20/2,885,969.70
  6. Step 6: Final answer
    x = 2,629,020.54

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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.