Finding the Fourth Proportional to 615,163.80, 922,745.70 and 405,211.80
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Solution
The fourth proportional to 615,163.80, 922,745.70 and 405,211.80 is: 607,817.70
Step by Step Solution
- Step 1: Write the proportion equation
615,163.80 : 922,745.70 = 405,211.80 : x - Step 2: Convert to fraction form
615,163.80/922,745.70 = 405,211.80/x - Step 3: Cross multiply
615,163.80x = 922,745.70 × 405,211.80 - Step 4: Simplify right side
615,163.80x = 373,907,446,039.26 - Step 5: Solve for x
x = 373,907,446,039.26/615,163.80 - Step 6: Final answer
x = 607,817.70
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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.