Home / 813,619.24-1,122,791.46-455,923.24

Finding the Fourth Proportional to 813,619.24, 1,122,791.46 and 455,923.24

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Solution

The fourth proportional to 813,619.24, 1,122,791.46 and 455,923.24 is: 629,172.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,619.24 : 1,122,791.46 = 455,923.24 : x
  2. Step 2: Convert to fraction form
    813,619.24/1,122,791.46 = 455,923.24/x
  3. Step 3: Cross multiply
    813,619.24x = 1,122,791.46 × 455,923.24
  4. Step 4: Simplify right side
    813,619.24x = 511,906,720,287.53
  5. Step 5: Solve for x
    x = 511,906,720,287.53/813,619.24
  6. Step 6: Final answer
    x = 629,172.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.