Home / 1,055,208.14-1,455,540.27-861,896.78

Finding the Fourth Proportional to 1,055,208.14, 1,455,540.27 and 861,896.78

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Solution

The fourth proportional to 1,055,208.14, 1,455,540.27 and 861,896.78 is: 1,188,889.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055,208.14 : 1,455,540.27 = 861,896.78 : x
  2. Step 2: Convert to fraction form
    1,055,208.14/1,455,540.27 = 861,896.78/x
  3. Step 3: Cross multiply
    1,055,208.14x = 1,455,540.27 × 861,896.78
  4. Step 4: Simplify right side
    1,055,208.14x = 1,254,525,471,873.33
  5. Step 5: Solve for x
    x = 1,254,525,471,873.33/1,055,208.14
  6. Step 6: Final answer
    x = 1,188,889.12

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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.