Home / 768,125.20-1,152,187.80-269,539.60

Finding the Fourth Proportional to 768,125.20, 1,152,187.80 and 269,539.60

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Solution

The fourth proportional to 768,125.20, 1,152,187.80 and 269,539.60 is: 404,309.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,125.20 : 1,152,187.80 = 269,539.60 : x
  2. Step 2: Convert to fraction form
    768,125.20/1,152,187.80 = 269,539.60/x
  3. Step 3: Cross multiply
    768,125.20x = 1,152,187.80 × 269,539.60
  4. Step 4: Simplify right side
    768,125.20x = 310,560,238,736.88
  5. Step 5: Solve for x
    x = 310,560,238,736.88/768,125.20
  6. Step 6: Final answer
    x = 404,309.40

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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.