Home / 1,728,395.52-2,589,120.81-861,214.83

Finding the Fourth Proportional to 1,728,395.52, 2,589,120.81 and 861,214.83

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Solution

The fourth proportional to 1,728,395.52, 2,589,120.81 and 861,214.83 is: 1,290,092.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728,395.52 : 2,589,120.81 = 861,214.83 : x
  2. Step 2: Convert to fraction form
    1,728,395.52/2,589,120.81 = 861,214.83/x
  3. Step 3: Cross multiply
    1,728,395.52x = 2,589,120.81 × 861,214.83
  4. Step 4: Simplify right side
    1,728,395.52x = 2,229,789,238,233.61
  5. Step 5: Solve for x
    x = 2,229,789,238,233.61/1,728,395.52
  6. Step 6: Final answer
    x = 1,290,092.00

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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.