Finding the Fourth Proportional to 777,907.80, 1,166,861.70 and 186,931.80
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Solution
The fourth proportional to 777,907.80, 1,166,861.70 and 186,931.80 is: 280,397.70
Step by Step Solution
- Step 1: Write the proportion equation
777,907.80 : 1,166,861.70 = 186,931.80 : x - Step 2: Convert to fraction form
777,907.80/1,166,861.70 = 186,931.80/x - Step 3: Cross multiply
777,907.80x = 1,166,861.70 × 186,931.80 - Step 4: Simplify right side
777,907.80x = 218,123,557,932.06 - Step 5: Solve for x
x = 218,123,557,932.06/777,907.80 - Step 6: Final answer
x = 280,397.70
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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.