Finding the Fourth Proportional to 1,173,173.63, 1,618,979.60 and 636,629.63
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Solution
The fourth proportional to 1,173,173.63, 1,618,979.60 and 636,629.63 is: 878,548.88
Step by Step Solution
- Step 1: Write the proportion equation
1,173,173.63 : 1,618,979.60 = 636,629.63 : x - Step 2: Convert to fraction form
1,173,173.63/1,618,979.60 = 636,629.63/x - Step 3: Cross multiply
1,173,173.63x = 1,618,979.60 × 636,629.63 - Step 4: Simplify right side
1,173,173.63x = 1,030,690,377,222.22 - Step 5: Solve for x
x = 1,030,690,377,222.22/1,173,173.63 - Step 6: Final answer
x = 878,548.88
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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.