Finding the Fourth Proportional to 543,512.13, 811,608.11 and 443,869.98
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Solution
The fourth proportional to 543,512.13, 811,608.11 and 443,869.98 is: 662,815.88
Step by Step Solution
- Step 1: Write the proportion equation
543,512.13 : 811,608.11 = 443,869.98 : x - Step 2: Convert to fraction form
543,512.13/811,608.11 = 443,869.98/x - Step 3: Cross multiply
543,512.13x = 811,608.11 × 443,869.98 - Step 4: Simplify right side
543,512.13x = 360,248,473,334.19 - Step 5: Solve for x
x = 360,248,473,334.19/543,512.13 - Step 6: Final answer
x = 662,815.88
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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.