Finding the Fourth Proportional to 1,361,538.09, 2,042,528.82 and 402,090.81
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Solution
The fourth proportional to 1,361,538.09, 2,042,528.82 and 402,090.81 is: 603,201.68
Step by Step Solution
- Step 1: Write the proportion equation
1,361,538.09 : 2,042,528.82 = 402,090.81 : x - Step 2: Convert to fraction form
1,361,538.09/2,042,528.82 = 402,090.81/x - Step 3: Cross multiply
1,361,538.09x = 2,042,528.82 × 402,090.81 - Step 4: Simplify right side
1,361,538.09x = 821,282,067,682.14 - Step 5: Solve for x
x = 821,282,067,682.14/1,361,538.09 - Step 6: Final answer
x = 603,201.68
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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.