Finding the Fourth Proportional to 543,306.42, 815,495.99 and 407,899.54
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Solution
The fourth proportional to 543,306.42, 815,495.99 and 407,899.54 is: 612,251.99
Step by Step Solution
- Step 1: Write the proportion equation
543,306.42 : 815,495.99 = 407,899.54 : x - Step 2: Convert to fraction form
543,306.42/815,495.99 = 407,899.54/x - Step 3: Cross multiply
543,306.42x = 815,495.99 × 407,899.54 - Step 4: Simplify right side
543,306.42x = 332,640,439,192.85 - Step 5: Solve for x
x = 332,640,439,192.85/543,306.42 - Step 6: Final answer
x = 612,251.99
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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.