Home / 789,979.56-1,185,092.16-257,376.48

Finding the Fourth Proportional to 789,979.56, 1,185,092.16 and 257,376.48

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Solution

The fourth proportional to 789,979.56, 1,185,092.16 and 257,376.48 is: 386,104.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,979.56 : 1,185,092.16 = 257,376.48 : x
  2. Step 2: Convert to fraction form
    789,979.56/1,185,092.16 = 257,376.48/x
  3. Step 3: Cross multiply
    789,979.56x = 1,185,092.16 × 257,376.48
  4. Step 4: Simplify right side
    789,979.56x = 305,014,848,616.40
  5. Step 5: Solve for x
    x = 305,014,848,616.40/789,979.56
  6. Step 6: Final answer
    x = 386,104.73

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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.