Home / 1,131,780.36-1,561,901.46-622,530.12

Finding the Fourth Proportional to 1,131,780.36, 1,561,901.46 and 622,530.12

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Solution

The fourth proportional to 1,131,780.36, 1,561,901.46 and 622,530.12 is: 859,116.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,780.36 : 1,561,901.46 = 622,530.12 : x
  2. Step 2: Convert to fraction form
    1,131,780.36/1,561,901.46 = 622,530.12/x
  3. Step 3: Cross multiply
    1,131,780.36x = 1,561,901.46 × 622,530.12
  4. Step 4: Simplify right side
    1,131,780.36x = 972,330,703,321.98
  5. Step 5: Solve for x
    x = 972,330,703,321.98/1,131,780.36
  6. Step 6: Final answer
    x = 859,116.08

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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.