Home / 1,913,760-2,640,988.80-1,109,410.56

Finding the Fourth Proportional to 1,913,760, 2,640,988.80 and 1,109,410.56

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Solution

The fourth proportional to 1,913,760, 2,640,988.80 and 1,109,410.56 is: 1,530,986.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,760 : 2,640,988.80 = 1,109,410.56 : x
  2. Step 2: Convert to fraction form
    1,913,760/2,640,988.80 = 1,109,410.56/x
  3. Step 3: Cross multiply
    1,913,760x = 2,640,988.80 × 1,109,410.56
  4. Step 4: Simplify right side
    1,913,760x = 2,929,940,863,561.73
  5. Step 5: Solve for x
    x = 2,929,940,863,561.73/1,913,760
  6. Step 6: Final answer
    x = 1,530,986.57

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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.