Home / 1,998,876.78-2,758,450.40-1,127,896.34

Finding the Fourth Proportional to 1,998,876.78, 2,758,450.40 and 1,127,896.34

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Solution

The fourth proportional to 1,998,876.78, 2,758,450.40 and 1,127,896.34 is: 1,556,497.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998,876.78 : 2,758,450.40 = 1,127,896.34 : x
  2. Step 2: Convert to fraction form
    1,998,876.78/2,758,450.40 = 1,127,896.34/x
  3. Step 3: Cross multiply
    1,998,876.78x = 2,758,450.40 × 1,127,896.34
  4. Step 4: Simplify right side
    1,998,876.78x = 3,111,246,110,231.54
  5. Step 5: Solve for x
    x = 3,111,246,110,231.54/1,998,876.78
  6. Step 6: Final answer
    x = 1,556,497.20

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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.