Finding the Fourth Proportional to 789,622.60, 1,184,516.87 and 257,185.09
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Solution
The fourth proportional to 789,622.60, 1,184,516.87 and 257,185.09 is: 385,804.66
Step by Step Solution
- Step 1: Write the proportion equation
789,622.60 : 1,184,516.87 = 257,185.09 : x - Step 2: Convert to fraction form
789,622.60/1,184,516.87 = 257,185.09/x - Step 3: Cross multiply
789,622.60x = 1,184,516.87 × 257,185.09 - Step 4: Simplify right side
789,622.60x = 304,640,077,817.47 - Step 5: Solve for x
x = 304,640,077,817.47/789,622.60 - Step 6: Final answer
x = 385,804.66
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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.