Home / 682,919.30-942,403.93-376,989.11

Finding the Fourth Proportional to 682,919.30, 942,403.93 and 376,989.11

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Solution

The fourth proportional to 682,919.30, 942,403.93 and 376,989.11 is: 520,231.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,919.30 : 942,403.93 = 376,989.11 : x
  2. Step 2: Convert to fraction form
    682,919.30/942,403.93 = 376,989.11/x
  3. Step 3: Cross multiply
    682,919.30x = 942,403.93 × 376,989.11
  4. Step 4: Simplify right side
    682,919.30x = 355,276,021,481.80
  5. Step 5: Solve for x
    x = 355,276,021,481.80/682,919.30
  6. Step 6: Final answer
    x = 520,231.34

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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.