Finding the Fourth Proportional to 425,622.97, 638,527.86 and 126,126.99
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Solution
The fourth proportional to 425,622.97, 638,527.86 and 126,126.99 is: 189,218.16
Step by Step Solution
- Step 1: Write the proportion equation
425,622.97 : 638,527.86 = 126,126.99 : x - Step 2: Convert to fraction form
425,622.97/638,527.86 = 126,126.99/x - Step 3: Cross multiply
425,622.97x = 638,527.86 × 126,126.99 - Step 4: Simplify right side
425,622.97x = 80,535,597,012.94 - Step 5: Solve for x
x = 80,535,597,012.94/425,622.97 - Step 6: Final answer
x = 189,218.16
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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.