Home / 1,938,739.92-2,675,374.76-1,111,220.28

Finding the Fourth Proportional to 1,938,739.92, 2,675,374.76 and 1,111,220.28

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Solution

The fourth proportional to 1,938,739.92, 2,675,374.76 and 1,111,220.28 is: 1,533,434.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938,739.92 : 2,675,374.76 = 1,111,220.28 : x
  2. Step 2: Convert to fraction form
    1,938,739.92/2,675,374.76 = 1,111,220.28/x
  3. Step 3: Cross multiply
    1,938,739.92x = 2,675,374.76 × 1,111,220.28
  4. Step 4: Simplify right side
    1,938,739.92x = 2,972,930,689,912.13
  5. Step 5: Solve for x
    x = 2,972,930,689,912.13/1,938,739.92
  6. Step 6: Final answer
    x = 1,533,434.51

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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.