Home / 925,690.38-1,388,036.30-419,975.43

Finding the Fourth Proportional to 925,690.38, 1,388,036.30 and 419,975.43

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Solution

The fourth proportional to 925,690.38, 1,388,036.30 and 419,975.43 is: 629,736.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,690.38 : 1,388,036.30 = 419,975.43 : x
  2. Step 2: Convert to fraction form
    925,690.38/1,388,036.30 = 419,975.43/x
  3. Step 3: Cross multiply
    925,690.38x = 1,388,036.30 × 419,975.43
  4. Step 4: Simplify right side
    925,690.38x = 582,941,136,029.49
  5. Step 5: Solve for x
    x = 582,941,136,029.49/925,690.38
  6. Step 6: Final answer
    x = 629,736.63

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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.