Home / 1,728,394.02-2,589,118.56-861,213.33

Finding the Fourth Proportional to 1,728,394.02, 2,589,118.56 and 861,213.33

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Solution

The fourth proportional to 1,728,394.02, 2,589,118.56 and 861,213.33 is: 1,290,089.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728,394.02 : 2,589,118.56 = 861,213.33 : x
  2. Step 2: Convert to fraction form
    1,728,394.02/2,589,118.56 = 861,213.33/x
  3. Step 3: Cross multiply
    1,728,394.02x = 2,589,118.56 × 861,213.33
  4. Step 4: Simplify right side
    1,728,394.02x = 2,229,783,416,822.40
  5. Step 5: Solve for x
    x = 2,229,783,416,822.40/1,728,394.02
  6. Step 6: Final answer
    x = 1,290,089.75

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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.