Finding the Fourth Proportional to 2,128,067.63, 2,936,804.21 and 1,161,250.97
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Solution
The fourth proportional to 2,128,067.63, 2,936,804.21 and 1,161,250.97 is: 1,602,565.01
Step by Step Solution
- Step 1: Write the proportion equation
2,128,067.63 : 2,936,804.21 = 1,161,250.97 : x - Step 2: Convert to fraction form
2,128,067.63/2,936,804.21 = 1,161,250.97/x - Step 3: Cross multiply
2,128,067.63x = 2,936,804.21 × 1,161,250.97 - Step 4: Simplify right side
2,128,067.63x = 3,410,366,721,427.00 - Step 5: Solve for x
x = 3,410,366,721,427.00/2,128,067.63 - Step 6: Final answer
x = 1,602,565.01
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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.