Finding the Fourth Proportional to 1,643,690.44, 2,268,286.18 and 918,537.99
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Solution
The fourth proportional to 1,643,690.44, 2,268,286.18 and 918,537.99 is: 1,267,578.73
Step by Step Solution
- Step 1: Write the proportion equation
1,643,690.44 : 2,268,286.18 = 918,537.99 : x - Step 2: Convert to fraction form
1,643,690.44/2,268,286.18 = 918,537.99/x - Step 3: Cross multiply
1,643,690.44x = 2,268,286.18 × 918,537.99 - Step 4: Simplify right side
1,643,690.44x = 2,083,507,035,645.45 - Step 5: Solve for x
x = 2,083,507,035,645.45/1,643,690.44 - Step 6: Final answer
x = 1,267,578.73
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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.