Home / 845,821.38-1,268,918.93-419,589.06

Finding the Fourth Proportional to 845,821.38, 1,268,918.93 and 419,589.06

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Solution

The fourth proportional to 845,821.38, 1,268,918.93 and 419,589.06 is: 629,476.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,821.38 : 1,268,918.93 = 419,589.06 : x
  2. Step 2: Convert to fraction form
    845,821.38/1,268,918.93 = 419,589.06/x
  3. Step 3: Cross multiply
    845,821.38x = 1,268,918.93 × 419,589.06
  4. Step 4: Simplify right side
    845,821.38x = 532,424,498,956.96
  5. Step 5: Solve for x
    x = 532,424,498,956.96/845,821.38
  6. Step 6: Final answer
    x = 629,476.28

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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.