Home / 1,131,252.88-1,561,089.08-621,951.36

Finding the Fourth Proportional to 1,131,252.88, 1,561,089.08 and 621,951.36

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Solution

The fourth proportional to 1,131,252.88, 1,561,089.08 and 621,951.36 is: 858,270.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,252.88 : 1,561,089.08 = 621,951.36 : x
  2. Step 2: Convert to fraction form
    1,131,252.88/1,561,089.08 = 621,951.36/x
  3. Step 3: Cross multiply
    1,131,252.88x = 1,561,089.08 × 621,951.36
  4. Step 4: Simplify right side
    1,131,252.88x = 970,921,476,387.15
  5. Step 5: Solve for x
    x = 970,921,476,387.15/1,131,252.88
  6. Step 6: Final answer
    x = 858,270.94

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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.