Finding the Fourth Proportional to 1,543,019.25, 2,128,874.49 and 999,571.62
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Solution
The fourth proportional to 1,543,019.25, 2,128,874.49 and 999,571.62 is: 1,379,090.07
Step by Step Solution
- Step 1: Write the proportion equation
1,543,019.25 : 2,128,874.49 = 999,571.62 : x - Step 2: Convert to fraction form
1,543,019.25/2,128,874.49 = 999,571.62/x - Step 3: Cross multiply
1,543,019.25x = 2,128,874.49 × 999,571.62 - Step 4: Simplify right side
1,543,019.25x = 2,127,962,522,745.97 - Step 5: Solve for x
x = 2,127,962,522,745.97/1,543,019.25 - Step 6: Final answer
x = 1,379,090.07
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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.