Finding the Fourth Proportional to 838,239.70, 1,256,601.44 and 305,636.17
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Solution
The fourth proportional to 838,239.70, 1,256,601.44 and 305,636.17 is: 458,177.84
Step by Step Solution
- Step 1: Write the proportion equation
838,239.70 : 1,256,601.44 = 305,636.17 : x - Step 2: Convert to fraction form
838,239.70/1,256,601.44 = 305,636.17/x - Step 3: Cross multiply
838,239.70x = 1,256,601.44 × 305,636.17 - Step 4: Simplify right side
838,239.70x = 384,062,851,338.09 - Step 5: Solve for x
x = 384,062,851,338.09/838,239.70 - Step 6: Final answer
x = 458,177.84
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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.