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Finding the Fourth Proportional to 682,863.60, 942,351.94 and 376,940.18

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Solution

The fourth proportional to 682,863.60, 942,351.94 and 376,940.18 is: 520,177.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,863.60 : 942,351.94 = 376,940.18 : x
  2. Step 2: Convert to fraction form
    682,863.60/942,351.94 = 376,940.18/x
  3. Step 3: Cross multiply
    682,863.60x = 942,351.94 × 376,940.18
  4. Step 4: Simplify right side
    682,863.60x = 355,210,309,886.95
  5. Step 5: Solve for x
    x = 355,210,309,886.95/682,863.60
  6. Step 6: Final answer
    x = 520,177.54

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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.