Home / 682,921.46-942,406.91-376,991.27

Finding the Fourth Proportional to 682,921.46, 942,406.91 and 376,991.27

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Solution

The fourth proportional to 682,921.46, 942,406.91 and 376,991.27 is: 520,234.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,921.46 : 942,406.91 = 376,991.27 : x
  2. Step 2: Convert to fraction form
    682,921.46/942,406.91 = 376,991.27/x
  3. Step 3: Cross multiply
    682,921.46x = 942,406.91 × 376,991.27
  4. Step 4: Simplify right side
    682,921.46x = 355,279,183,630.04
  5. Step 5: Solve for x
    x = 355,279,183,630.04/682,921.46
  6. Step 6: Final answer
    x = 520,234.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.