Finding the Fourth Proportional to 543,487.34, 811,571.19 and 443,845.19
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Solution
The fourth proportional to 543,487.34, 811,571.19 and 443,845.19 is: 662,778.95
Step by Step Solution
- Step 1: Write the proportion equation
543,487.34 : 811,571.19 = 443,845.19 : x - Step 2: Convert to fraction form
543,487.34/811,571.19 = 443,845.19/x - Step 3: Cross multiply
543,487.34x = 811,571.19 × 443,845.19 - Step 4: Simplify right side
543,487.34x = 360,211,964,966.22 - Step 5: Solve for x
x = 360,211,964,966.22/543,487.34 - Step 6: Final answer
x = 662,778.95
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.