Home / 2,085,611-2,878,143.18-1,131,755

Finding the Fourth Proportional to 2,085,611, 2,878,143.18 and 1,131,755

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Solution

The fourth proportional to 2,085,611, 2,878,143.18 and 1,131,755 is: 1,561,821.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085,611 : 2,878,143.18 = 1,131,755 : x
  2. Step 2: Convert to fraction form
    2,085,611/2,878,143.18 = 1,131,755/x
  3. Step 3: Cross multiply
    2,085,611x = 2,878,143.18 × 1,131,755
  4. Step 4: Simplify right side
    2,085,611x = 3,257,352,934,680.90
  5. Step 5: Solve for x
    x = 3,257,352,934,680.90/2,085,611
  6. Step 6: Final answer
    x = 1,561,821.90

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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.