Home / 1,091,715.20-1,638,801.60-843,497.60

Finding the Fourth Proportional to 1,091,715.20, 1,638,801.60 and 843,497.60

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Solution

The fourth proportional to 1,091,715.20, 1,638,801.60 and 843,497.60 is: 1,266,195.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,715.20 : 1,638,801.60 = 843,497.60 : x
  2. Step 2: Convert to fraction form
    1,091,715.20/1,638,801.60 = 843,497.60/x
  3. Step 3: Cross multiply
    1,091,715.20x = 1,638,801.60 × 843,497.60
  4. Step 4: Simplify right side
    1,091,715.20x = 1,382,325,216,476.16
  5. Step 5: Solve for x
    x = 1,382,325,216,476.16/1,091,715.20
  6. Step 6: Final answer
    x = 1,266,195.81

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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.