Home / 1,728,394.52-2,589,119.31-861,213.83

Finding the Fourth Proportional to 1,728,394.52, 2,589,119.31 and 861,213.83

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Solution

The fourth proportional to 1,728,394.52, 2,589,119.31 and 861,213.83 is: 1,290,090.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728,394.52 : 2,589,119.31 = 861,213.83 : x
  2. Step 2: Convert to fraction form
    1,728,394.52/2,589,119.31 = 861,213.83/x
  3. Step 3: Cross multiply
    1,728,394.52x = 2,589,119.31 × 861,213.83
  4. Step 4: Simplify right side
    1,728,394.52x = 2,229,785,357,292.06
  5. Step 5: Solve for x
    x = 2,229,785,357,292.06/1,728,394.52
  6. Step 6: Final answer
    x = 1,290,090.50

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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.