Home / 2,619,986.50-3,929,979.75-726,727.94

Finding the Fourth Proportional to 2,619,986.50, 3,929,979.75 and 726,727.94

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Solution

The fourth proportional to 2,619,986.50, 3,929,979.75 and 726,727.94 is: 1,090,091.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619,986.50 : 3,929,979.75 = 726,727.94 : x
  2. Step 2: Convert to fraction form
    2,619,986.50/3,929,979.75 = 726,727.94/x
  3. Step 3: Cross multiply
    2,619,986.50x = 3,929,979.75 × 726,727.94
  4. Step 4: Simplify right side
    2,619,986.50x = 2,856,026,087,959.22
  5. Step 5: Solve for x
    x = 2,856,026,087,959.22/2,619,986.50
  6. Step 6: Final answer
    x = 1,090,091.91

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Double scale
Find fourth proportional to 2,619,987.50, 3,929,981.25 and 726,728.94
Similar ratio
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1.5x scale

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.