Finding the Fourth Proportional to 1,213,207.35, 1,674,231.98 and 669,343.11
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Solution
The fourth proportional to 1,213,207.35, 1,674,231.98 and 669,343.11 is: 923,696.71
Step by Step Solution
- Step 1: Write the proportion equation
1,213,207.35 : 1,674,231.98 = 669,343.11 : x - Step 2: Convert to fraction form
1,213,207.35/1,674,231.98 = 669,343.11/x - Step 3: Cross multiply
1,213,207.35x = 1,674,231.98 × 669,343.11 - Step 4: Simplify right side
1,213,207.35x = 1,120,635,637,007.94 - Step 5: Solve for x
x = 1,120,635,637,007.94/1,213,207.35 - Step 6: Final answer
x = 923,696.71
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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.