Home / 2,105,569.92-3,157,647.66-685,291.98

Finding the Fourth Proportional to 2,105,569.92, 3,157,647.66 and 685,291.98

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Solution

The fourth proportional to 2,105,569.92, 3,157,647.66 and 685,291.98 is: 1,027,707.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,569.92 : 3,157,647.66 = 685,291.98 : x
  2. Step 2: Convert to fraction form
    2,105,569.92/3,157,647.66 = 685,291.98/x
  3. Step 3: Cross multiply
    2,105,569.92x = 3,157,647.66 × 685,291.98
  4. Step 4: Simplify right side
    2,105,569.92x = 2,163,910,617,063.77
  5. Step 5: Solve for x
    x = 2,163,910,617,063.77/2,105,569.92
  6. Step 6: Final answer
    x = 1,027,707.79

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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.