Finding the Fourth Proportional to 1,205,615.09, 1,665,129.64 and 793,991.91
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Solution
The fourth proportional to 1,205,615.09, 1,665,129.64 and 793,991.91 is: 1,096,618.21
Step by Step Solution
- Step 1: Write the proportion equation
1,205,615.09 : 1,665,129.64 = 793,991.91 : x - Step 2: Convert to fraction form
1,205,615.09/1,665,129.64 = 793,991.91/x - Step 3: Cross multiply
1,205,615.09x = 1,665,129.64 × 793,991.91 - Step 4: Simplify right side
1,205,615.09x = 1,322,099,463,261.21 - Step 5: Solve for x
x = 1,322,099,463,261.21/1,205,615.09 - Step 6: Final answer
x = 1,096,618.21
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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.