Finding the Fourth Proportional to 621,616.36, 857,826.66 and 353,344.36
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Solution
The fourth proportional to 621,616.36, 857,826.66 and 353,344.36 is: 487,612.99
Step by Step Solution
- Step 1: Write the proportion equation
621,616.36 : 857,826.66 = 353,344.36 : x - Step 2: Convert to fraction form
621,616.36/857,826.66 = 353,344.36/x - Step 3: Cross multiply
621,616.36x = 857,826.66 × 353,344.36 - Step 4: Simplify right side
621,616.36x = 303,108,212,168.64 - Step 5: Solve for x
x = 303,108,212,168.64/621,616.36 - Step 6: Final answer
x = 487,612.99
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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.