Finding the Fourth Proportional to 1,891,119.75, 2,609,745.26 and 1,212,056.25
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Solution
The fourth proportional to 1,891,119.75, 2,609,745.26 and 1,212,056.25 is: 1,672,637.63
Step by Step Solution
- Step 1: Write the proportion equation
1,891,119.75 : 2,609,745.26 = 1,212,056.25 : x - Step 2: Convert to fraction form
1,891,119.75/2,609,745.26 = 1,212,056.25/x - Step 3: Cross multiply
1,891,119.75x = 2,609,745.26 × 1,212,056.25 - Step 4: Simplify right side
1,891,119.75x = 3,163,158,047,230.59 - Step 5: Solve for x
x = 3,163,158,047,230.59/1,891,119.75 - Step 6: Final answer
x = 1,672,637.63
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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.