Home / 1,305,208.64-1,801,519.01-891,912.80

Finding the Fourth Proportional to 1,305,208.64, 1,801,519.01 and 891,912.80

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Solution

The fourth proportional to 1,305,208.64, 1,801,519.01 and 891,912.80 is: 1,231,065.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,208.64 : 1,801,519.01 = 891,912.80 : x
  2. Step 2: Convert to fraction form
    1,305,208.64/1,801,519.01 = 891,912.80/x
  3. Step 3: Cross multiply
    1,305,208.64x = 1,801,519.01 × 891,912.80
  4. Step 4: Simplify right side
    1,305,208.64x = 1,606,797,864,462.33
  5. Step 5: Solve for x
    x = 1,606,797,864,462.33/1,305,208.64
  6. Step 6: Final answer
    x = 1,231,065.91

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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.