Home / 682,921.79-942,407.37-376,991.60

Finding the Fourth Proportional to 682,921.79, 942,407.37 and 376,991.60

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Solution

The fourth proportional to 682,921.79, 942,407.37 and 376,991.60 is: 520,234.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,921.79 : 942,407.37 = 376,991.60 : x
  2. Step 2: Convert to fraction form
    682,921.79/942,407.37 = 376,991.60/x
  3. Step 3: Cross multiply
    682,921.79x = 942,407.37 × 376,991.60
  4. Step 4: Simplify right side
    682,921.79x = 355,279,662,268.09
  5. Step 5: Solve for x
    x = 355,279,662,268.09/682,921.79
  6. Step 6: Final answer
    x = 520,234.77

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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.