Home / 1,138,970.61-1,571,782.27-622,757.82

Finding the Fourth Proportional to 1,138,970.61, 1,571,782.27 and 622,757.82

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Solution

The fourth proportional to 1,138,970.61, 1,571,782.27 and 622,757.82 is: 859,407.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,970.61 : 1,571,782.27 = 622,757.82 : x
  2. Step 2: Convert to fraction form
    1,138,970.61/1,571,782.27 = 622,757.82/x
  3. Step 3: Cross multiply
    1,138,970.61x = 1,571,782.27 × 622,757.82
  4. Step 4: Simplify right side
    1,138,970.61x = 978,839,699,979.85
  5. Step 5: Solve for x
    x = 978,839,699,979.85/1,138,970.61
  6. Step 6: Final answer
    x = 859,407.34

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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.