Finding the Fourth Proportional to 990,950.40, 1,486,482.12 and 280,922.63
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Solution
The fourth proportional to 990,950.40, 1,486,482.12 and 280,922.63 is: 421,399.96
Step by Step Solution
- Step 1: Write the proportion equation
990,950.40 : 1,486,482.12 = 280,922.63 : x - Step 2: Convert to fraction form
990,950.40/1,486,482.12 = 280,922.63/x - Step 3: Cross multiply
990,950.40x = 1,486,482.12 × 280,922.63 - Step 4: Simplify right side
990,950.40x = 417,586,459,165.97 - Step 5: Solve for x
x = 417,586,459,165.97/990,950.40 - Step 6: Final answer
x = 421,399.96
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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.