Finding the Fourth Proportional to 665,770.50, 998,907.30 and 399,716.64
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Solution
The fourth proportional to 665,770.50, 998,907.30 and 399,716.64 is: 599,725.99
Step by Step Solution
- Step 1: Write the proportion equation
665,770.50 : 998,907.30 = 399,716.64 : x - Step 2: Convert to fraction form
665,770.50/998,907.30 = 399,716.64/x - Step 3: Cross multiply
665,770.50x = 998,907.30 × 399,716.64 - Step 4: Simplify right side
665,770.50x = 399,279,869,627.47 - Step 5: Solve for x
x = 399,279,869,627.47/665,770.50 - Step 6: Final answer
x = 599,725.99
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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.