Finding the Fourth Proportional to 2,990,861.80, 4,486,292.70 and 996,317.80
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Solution
The fourth proportional to 2,990,861.80, 4,486,292.70 and 996,317.80 is: 1,494,476.70
Step by Step Solution
- Step 1: Write the proportion equation
2,990,861.80 : 4,486,292.70 = 996,317.80 : x - Step 2: Convert to fraction form
2,990,861.80/4,486,292.70 = 996,317.80/x - Step 3: Cross multiply
2,990,861.80x = 4,486,292.70 × 996,317.80 - Step 4: Simplify right side
2,990,861.80x = 4,469,773,273,020.06 - Step 5: Solve for x
x = 4,469,773,273,020.06/2,990,861.80 - Step 6: Final answer
x = 1,494,476.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.