Finding the Fourth Proportional to 1,616,163.21, 2,230,339.01 and 891,041.49
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Solution
The fourth proportional to 1,616,163.21, 2,230,339.01 and 891,041.49 is: 1,229,655.88
Step by Step Solution
- Step 1: Write the proportion equation
1,616,163.21 : 2,230,339.01 = 891,041.49 : x - Step 2: Convert to fraction form
1,616,163.21/2,230,339.01 = 891,041.49/x - Step 3: Cross multiply
1,616,163.21x = 2,230,339.01 × 891,041.49 - Step 4: Simplify right side
1,616,163.21x = 1,987,324,590,220.32 - Step 5: Solve for x
x = 1,987,324,590,220.32/1,616,163.21 - Step 6: Final answer
x = 1,229,655.88
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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.