Finding the Fourth Proportional to 1,129,528.14, 1,557,431.74 and 842,550.00
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Solution
The fourth proportional to 1,129,528.14, 1,557,431.74 and 842,550.00 is: 1,161,736.53
Step by Step Solution
- Step 1: Write the proportion equation
1,129,528.14 : 1,557,431.74 = 842,550.00 : x - Step 2: Convert to fraction form
1,129,528.14/1,557,431.74 = 842,550.00/x - Step 3: Cross multiply
1,129,528.14x = 1,557,431.74 × 842,550.00 - Step 4: Simplify right side
1,129,528.14x = 1,312,214,100,537.09 - Step 5: Solve for x
x = 1,312,214,100,537.09/1,129,528.14 - Step 6: Final answer
x = 1,161,736.53
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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.