Home / 792,127.80-1,188,180.90-259,666.20

Finding the Fourth Proportional to 792,127.80, 1,188,180.90 and 259,666.20

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Solution

The fourth proportional to 792,127.80, 1,188,180.90 and 259,666.20 is: 389,495.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,127.80 : 1,188,180.90 = 259,666.20 : x
  2. Step 2: Convert to fraction form
    792,127.80/1,188,180.90 = 259,666.20/x
  3. Step 3: Cross multiply
    792,127.80x = 1,188,180.90 × 259,666.20
  4. Step 4: Simplify right side
    792,127.80x = 308,530,419,215.58
  5. Step 5: Solve for x
    x = 308,530,419,215.58/792,127.80
  6. Step 6: Final answer
    x = 389,495.76

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1.5x scale

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.