Finding the Fourth Proportional to 694,843.94, 1,040,237.66 and 427,803.14
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Solution
The fourth proportional to 694,843.94, 1,040,237.66 and 427,803.14 is: 640,455.95
Step by Step Solution
- Step 1: Write the proportion equation
694,843.94 : 1,040,237.66 = 427,803.14 : x - Step 2: Convert to fraction form
694,843.94/1,040,237.66 = 427,803.14/x - Step 3: Cross multiply
694,843.94x = 1,040,237.66 × 427,803.14 - Step 4: Simplify right side
694,843.94x = 445,016,929,954.05 - Step 5: Solve for x
x = 445,016,929,954.05/694,843.94 - Step 6: Final answer
x = 640,455.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.