Finding the Fourth Proportional to 543,609.80, 815,414.70 and 294,777.80
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Solution
The fourth proportional to 543,609.80, 815,414.70 and 294,777.80 is: 442,166.70
Step by Step Solution
- Step 1: Write the proportion equation
543,609.80 : 815,414.70 = 294,777.80 : x - Step 2: Convert to fraction form
543,609.80/815,414.70 = 294,777.80/x - Step 3: Cross multiply
543,609.80x = 815,414.70 × 294,777.80 - Step 4: Simplify right side
543,609.80x = 240,366,151,353.66 - Step 5: Solve for x
x = 240,366,151,353.66/543,609.80 - Step 6: Final answer
x = 442,166.70
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1.5x scale
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.