Home / 792,122.80-1,188,475.80-259,661.20

Finding the Fourth Proportional to 792,122.80, 1,188,475.80 and 259,661.20

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Solution

The fourth proportional to 792,122.80, 1,188,475.80 and 259,661.20 is: 389,587.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,122.80 : 1,188,475.80 = 259,661.20 : x
  2. Step 2: Convert to fraction form
    792,122.80/1,188,475.80 = 259,661.20/x
  3. Step 3: Cross multiply
    792,122.80x = 1,188,475.80 × 259,661.20
  4. Step 4: Simplify right side
    792,122.80x = 308,601,052,398.96
  5. Step 5: Solve for x
    x = 308,601,052,398.96/792,122.80
  6. Step 6: Final answer
    x = 389,587.39

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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.