Finding the Fourth Proportional to 816,531.32, 1,126,837.68 and 448,989.44
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Solution
The fourth proportional to 816,531.32, 1,126,837.68 and 448,989.44 is: 619,618.88
Step by Step Solution
- Step 1: Write the proportion equation
816,531.32 : 1,126,837.68 = 448,989.44 : x - Step 2: Convert to fraction form
816,531.32/1,126,837.68 = 448,989.44/x - Step 3: Cross multiply
816,531.32x = 1,126,837.68 × 448,989.44 - Step 4: Simplify right side
816,531.32x = 505,938,218,914.10 - Step 5: Solve for x
x = 505,938,218,914.10/816,531.32 - Step 6: Final answer
x = 619,618.88
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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.