Home / 2,781,856.36-4,173,383.74-862,728.83

Finding the Fourth Proportional to 2,781,856.36, 4,173,383.74 and 862,728.83

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Solution

The fourth proportional to 2,781,856.36, 4,173,383.74 and 862,728.83 is: 1,294,279.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781,856.36 : 4,173,383.74 = 862,728.83 : x
  2. Step 2: Convert to fraction form
    2,781,856.36/4,173,383.74 = 862,728.83/x
  3. Step 3: Cross multiply
    2,781,856.36x = 4,173,383.74 × 862,728.83
  4. Step 4: Simplify right side
    2,781,856.36x = 3,600,498,471,151.22
  5. Step 5: Solve for x
    x = 3,600,498,471,151.22/2,781,856.36
  6. Step 6: Final answer
    x = 1,294,279.07

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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.