Finding the Fourth Proportional to 990,440.10, 1,481,723.55 and 858,782.70
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Solution
The fourth proportional to 990,440.10, 1,481,723.55 and 858,782.70 is: 1,284,760.74
Step by Step Solution
- Step 1: Write the proportion equation
990,440.10 : 1,481,723.55 = 858,782.70 : x - Step 2: Convert to fraction form
990,440.10/1,481,723.55 = 858,782.70/x - Step 3: Cross multiply
990,440.10x = 1,481,723.55 × 858,782.70 - Step 4: Simplify right side
990,440.10x = 1,272,478,550,922.59 - Step 5: Solve for x
x = 1,272,478,550,922.59/990,440.10 - Step 6: Final answer
x = 1,284,760.74
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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.