Home / 920,238.96-1,268,843.16-629,990.16

Finding the Fourth Proportional to 920,238.96, 1,268,843.16 and 629,990.16

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Solution

The fourth proportional to 920,238.96, 1,268,843.16 and 629,990.16 is: 868,642.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,238.96 : 1,268,843.16 = 629,990.16 : x
  2. Step 2: Convert to fraction form
    920,238.96/1,268,843.16 = 629,990.16/x
  3. Step 3: Cross multiply
    920,238.96x = 1,268,843.16 × 629,990.16
  4. Step 4: Simplify right side
    920,238.96x = 799,358,705,383.31
  5. Step 5: Solve for x
    x = 799,358,705,383.31/920,238.96
  6. Step 6: Final answer
    x = 868,642.54

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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.