Finding the Fourth Proportional to 739,687.80, 1,106,723.70 and 490,855.80
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Solution
The fourth proportional to 739,687.80, 1,106,723.70 and 490,855.80 is: 734,420.32
Step by Step Solution
- Step 1: Write the proportion equation
739,687.80 : 1,106,723.70 = 490,855.80 : x - Step 2: Convert to fraction form
739,687.80/1,106,723.70 = 490,855.80/x - Step 3: Cross multiply
739,687.80x = 1,106,723.70 × 490,855.80 - Step 4: Simplify right side
739,687.80x = 543,241,747,142.46 - Step 5: Solve for x
x = 543,241,747,142.46/739,687.80 - Step 6: Final answer
x = 734,420.32
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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.