Finding the Fourth Proportional to 392,645.62, 589,024.11 and 126,344.26
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Solution
The fourth proportional to 392,645.62, 589,024.11 and 126,344.26 is: 189,534.31
Step by Step Solution
- Step 1: Write the proportion equation
392,645.62 : 589,024.11 = 126,344.26 : x - Step 2: Convert to fraction form
392,645.62/589,024.11 = 126,344.26/x - Step 3: Cross multiply
392,645.62x = 589,024.11 × 126,344.26 - Step 4: Simplify right side
392,645.62x = 74,419,815,300.11 - Step 5: Solve for x
x = 74,419,815,300.11/392,645.62 - Step 6: Final answer
x = 189,534.31
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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.