Finding the Fourth Proportional to 543,691.80, 815,537.70 and 464,959.80
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Solution
The fourth proportional to 543,691.80, 815,537.70 and 464,959.80 is: 697,439.70
Step by Step Solution
- Step 1: Write the proportion equation
543,691.80 : 815,537.70 = 464,959.80 : x - Step 2: Convert to fraction form
543,691.80/815,537.70 = 464,959.80/x - Step 3: Cross multiply
543,691.80x = 815,537.70 × 464,959.80 - Step 4: Simplify right side
543,691.80x = 379,192,245,884.46 - Step 5: Solve for x
x = 379,192,245,884.46/543,691.80 - Step 6: Final answer
x = 697,439.70
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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.