Finding the Fourth Proportional to 722,142.26, 1,083,415.80 and 290,163.05
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Solution
The fourth proportional to 722,142.26, 1,083,415.80 and 290,163.05 is: 435,325.90
Step by Step Solution
- Step 1: Write the proportion equation
722,142.26 : 1,083,415.80 = 290,163.05 : x - Step 2: Convert to fraction form
722,142.26/1,083,415.80 = 290,163.05/x - Step 3: Cross multiply
722,142.26x = 1,083,415.80 × 290,163.05 - Step 4: Simplify right side
722,142.26x = 314,367,227,529.11 - Step 5: Solve for x
x = 314,367,227,529.11/722,142.26 - Step 6: Final answer
x = 435,325.90
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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.