Finding the Fourth Proportional to 3,405,131.61, 5,107,715.85 and 1,008,996.99
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Solution
The fourth proportional to 3,405,131.61, 5,107,715.85 and 1,008,996.99 is: 1,513,500.95
Step by Step Solution
- Step 1: Write the proportion equation
3,405,131.61 : 5,107,715.85 = 1,008,996.99 : x - Step 2: Convert to fraction form
3,405,131.61/5,107,715.85 = 1,008,996.99/x - Step 3: Cross multiply
3,405,131.61x = 5,107,715.85 × 1,008,996.99 - Step 4: Simplify right side
3,405,131.61x = 5,153,669,918,425.29 - Step 5: Solve for x
x = 5,153,669,918,425.29/3,405,131.61 - Step 6: Final answer
x = 1,513,500.95
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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.