Home / 789,975.45-1,185,086.07-257,372.55

Finding the Fourth Proportional to 789,975.45, 1,185,086.07 and 257,372.55

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Solution

The fourth proportional to 789,975.45, 1,185,086.07 and 257,372.55 is: 386,098.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,975.45 : 1,185,086.07 = 257,372.55 : x
  2. Step 2: Convert to fraction form
    789,975.45/1,185,086.07 = 257,372.55/x
  3. Step 3: Cross multiply
    789,975.45x = 1,185,086.07 × 257,372.55
  4. Step 4: Simplify right side
    789,975.45x = 305,008,623,805.38
  5. Step 5: Solve for x
    x = 305,008,623,805.38/789,975.45
  6. Step 6: Final answer
    x = 386,098.86

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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.