Finding the Fourth Proportional to 1,190,851.37, 1,643,366.02 and 646,991.63
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Solution
The fourth proportional to 1,190,851.37, 1,643,366.02 and 646,991.63 is: 892,843.63
Step by Step Solution
- Step 1: Write the proportion equation
1,190,851.37 : 1,643,366.02 = 646,991.63 : x - Step 2: Convert to fraction form
1,190,851.37/1,643,366.02 = 646,991.63/x - Step 3: Cross multiply
1,190,851.37x = 1,643,366.02 × 646,991.63 - Step 4: Simplify right side
1,190,851.37x = 1,063,244,056,294.73 - Step 5: Solve for x
x = 1,063,244,056,294.73/1,190,851.37 - Step 6: Final answer
x = 892,843.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.