Home / 1,586,185.90-2,188,939.34-861,034.12

Finding the Fourth Proportional to 1,586,185.90, 2,188,939.34 and 861,034.12

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Solution

The fourth proportional to 1,586,185.90, 2,188,939.34 and 861,034.12 is: 1,188,228.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,185.90 : 2,188,939.34 = 861,034.12 : x
  2. Step 2: Convert to fraction form
    1,586,185.90/2,188,939.34 = 861,034.12/x
  3. Step 3: Cross multiply
    1,586,185.90x = 2,188,939.34 × 861,034.12
  4. Step 4: Simplify right side
    1,586,185.90x = 1,884,751,458,350.28
  5. Step 5: Solve for x
    x = 1,884,751,458,350.28/1,586,185.90
  6. Step 6: Final answer
    x = 1,188,228.60

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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.