Finding the Fourth Proportional to 1,268,930.58, 1,749,186.96 and 777,991.19
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Solution
The fourth proportional to 1,268,930.58, 1,749,186.96 and 777,991.19 is: 1,072,440.11
Step by Step Solution
- Step 1: Write the proportion equation
1,268,930.58 : 1,749,186.96 = 777,991.19 : x - Step 2: Convert to fraction form
1,268,930.58/1,749,186.96 = 777,991.19/x - Step 3: Cross multiply
1,268,930.58x = 1,749,186.96 × 777,991.19 - Step 4: Simplify right side
1,268,930.58x = 1,360,852,047,212.38 - Step 5: Solve for x
x = 1,360,852,047,212.38/1,268,930.58 - Step 6: Final answer
x = 1,072,440.11
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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.