Home / 1,287,805.88-1,777,083.20-714,800.94

Finding the Fourth Proportional to 1,287,805.88, 1,777,083.20 and 714,800.94

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Solution

The fourth proportional to 1,287,805.88, 1,777,083.20 and 714,800.94 is: 986,375.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,805.88 : 1,777,083.20 = 714,800.94 : x
  2. Step 2: Convert to fraction form
    1,287,805.88/1,777,083.20 = 714,800.94/x
  3. Step 3: Cross multiply
    1,287,805.88x = 1,777,083.20 × 714,800.94
  4. Step 4: Simplify right side
    1,287,805.88x = 1,270,260,741,818.21
  5. Step 5: Solve for x
    x = 1,270,260,741,818.21/1,287,805.88
  6. Step 6: Final answer
    x = 986,375.95

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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.