Finding the Fourth Proportional to 547,583.40, 821,375.10 and 397,117.80
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Solution
The fourth proportional to 547,583.40, 821,375.10 and 397,117.80 is: 595,676.70
Step by Step Solution
- Step 1: Write the proportion equation
547,583.40 : 821,375.10 = 397,117.80 : x - Step 2: Convert to fraction form
547,583.40/821,375.10 = 397,117.80/x - Step 3: Cross multiply
547,583.40x = 821,375.10 × 397,117.80 - Step 4: Simplify right side
547,583.40x = 326,182,672,686.78 - Step 5: Solve for x
x = 326,182,672,686.78/547,583.40 - Step 6: Final answer
x = 595,676.70
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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.