Finding the Fourth Proportional to 990,199.36, 1,485,377.52 and 280,231.84
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Solution
The fourth proportional to 990,199.36, 1,485,377.52 and 280,231.84 is: 420,369.97
Step by Step Solution
- Step 1: Write the proportion equation
990,199.36 : 1,485,377.52 = 280,231.84 : x - Step 2: Convert to fraction form
990,199.36/1,485,377.52 = 280,231.84/x - Step 3: Cross multiply
990,199.36x = 1,485,377.52 × 280,231.84 - Step 4: Simplify right side
990,199.36x = 416,250,075,524.24 - Step 5: Solve for x
x = 416,250,075,524.24/990,199.36 - Step 6: Final answer
x = 420,369.97
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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.