Home / 786,091.20-1,177,387.20-681,115.20

Finding the Fourth Proportional to 786,091.20, 1,177,387.20 and 681,115.20

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Solution

The fourth proportional to 786,091.20, 1,177,387.20 and 681,115.20 is: 1,020,156.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,091.20 : 1,177,387.20 = 681,115.20 : x
  2. Step 2: Convert to fraction form
    786,091.20/1,177,387.20 = 681,115.20/x
  3. Step 3: Cross multiply
    786,091.20x = 1,177,387.20 × 681,115.20
  4. Step 4: Simplify right side
    786,091.20x = 801,936,318,205.44
  5. Step 5: Solve for x
    x = 801,936,318,205.44/786,091.20
  6. Step 6: Final answer
    x = 1,020,156.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.