Finding the Fourth Proportional to 990,429.62, 1,368,074.97 and 819,039.87
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Solution
The fourth proportional to 990,429.62, 1,368,074.97 and 819,039.87 is: 1,131,335.26
Step by Step Solution
- Step 1: Write the proportion equation
990,429.62 : 1,368,074.97 = 819,039.87 : x - Step 2: Convert to fraction form
990,429.62/1,368,074.97 = 819,039.87/x - Step 3: Cross multiply
990,429.62x = 1,368,074.97 × 819,039.87 - Step 4: Simplify right side
990,429.62x = 1,120,507,945,579.05 - Step 5: Solve for x
x = 1,120,507,945,579.05/990,429.62 - Step 6: Final answer
x = 1,131,335.26
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.