Finding the Fourth Proportional to 990,805.80, 1,485,169.74 and 484,668.12
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Solution
The fourth proportional to 990,805.80, 1,485,169.74 and 484,668.12 is: 726,493.96
Step by Step Solution
- Step 1: Write the proportion equation
990,805.80 : 1,485,169.74 = 484,668.12 : x - Step 2: Convert to fraction form
990,805.80/1,485,169.74 = 484,668.12/x - Step 3: Cross multiply
990,805.80x = 1,485,169.74 × 484,668.12 - Step 4: Simplify right side
990,805.80x = 719,814,425,766.69 - Step 5: Solve for x
x = 719,814,425,766.69/990,805.80 - Step 6: Final answer
x = 726,493.96
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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.