Home / 1,131,014.07-1,560,759.84-621,712.80

Finding the Fourth Proportional to 1,131,014.07, 1,560,759.84 and 621,712.80

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Solution

The fourth proportional to 1,131,014.07, 1,560,759.84 and 621,712.80 is: 857,941.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,014.07 : 1,560,759.84 = 621,712.80 : x
  2. Step 2: Convert to fraction form
    1,131,014.07/1,560,759.84 = 621,712.80/x
  3. Step 3: Cross multiply
    1,131,014.07x = 1,560,759.84 × 621,712.80
  4. Step 4: Simplify right side
    1,131,014.07x = 970,344,370,253.95
  5. Step 5: Solve for x
    x = 970,344,370,253.95/1,131,014.07
  6. Step 6: Final answer
    x = 857,941.91

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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.