Finding the Fourth Proportional to 784,121.10, 1,081,922.07 and 512,586.78
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Solution
The fourth proportional to 784,121.10, 1,081,922.07 and 512,586.78 is: 707,261.86
Step by Step Solution
- Step 1: Write the proportion equation
784,121.10 : 1,081,922.07 = 512,586.78 : x - Step 2: Convert to fraction form
784,121.10/1,081,922.07 = 512,586.78/x - Step 3: Cross multiply
784,121.10x = 1,081,922.07 × 512,586.78 - Step 4: Simplify right side
784,121.10x = 554,578,950,072.24 - Step 5: Solve for x
x = 554,578,950,072.24/784,121.10 - Step 6: Final answer
x = 707,261.86
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.