Home / 682,885.20-1,024,327.80-209,571.60

Finding the Fourth Proportional to 682,885.20, 1,024,327.80 and 209,571.60

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Solution

The fourth proportional to 682,885.20, 1,024,327.80 and 209,571.60 is: 314,357.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,885.20 : 1,024,327.80 = 209,571.60 : x
  2. Step 2: Convert to fraction form
    682,885.20/1,024,327.80 = 209,571.60/x
  3. Step 3: Cross multiply
    682,885.20x = 1,024,327.80 × 209,571.60
  4. Step 4: Simplify right side
    682,885.20x = 214,670,015,970.48
  5. Step 5: Solve for x
    x = 214,670,015,970.48/682,885.20
  6. Step 6: Final answer
    x = 314,357.40

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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.