Finding the Fourth Proportional to 1,511,489.27, 2,085,840.68 and 823,172.63
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Solution
The fourth proportional to 1,511,489.27, 2,085,840.68 and 823,172.63 is: 1,135,970.31
Step by Step Solution
- Step 1: Write the proportion equation
1,511,489.27 : 2,085,840.68 = 823,172.63 : x - Step 2: Convert to fraction form
1,511,489.27/2,085,840.68 = 823,172.63/x - Step 3: Cross multiply
1,511,489.27x = 2,085,840.68 × 823,172.63 - Step 4: Simplify right side
1,511,489.27x = 1,717,006,943,771.52 - Step 5: Solve for x
x = 1,717,006,943,771.52/1,511,489.27 - Step 6: Final answer
x = 1,135,970.31
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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.