Finding the Fourth Proportional to 1,310,186.14, 1,809,042.36 and 1,289,260.50
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Solution
The fourth proportional to 1,310,186.14, 1,809,042.36 and 1,289,260.50 is: 1,780,149.23
Step by Step Solution
- Step 1: Write the proportion equation
1,310,186.14 : 1,809,042.36 = 1,289,260.50 : x - Step 2: Convert to fraction form
1,310,186.14/1,809,042.36 = 1,289,260.50/x - Step 3: Cross multiply
1,310,186.14x = 1,809,042.36 × 1,289,260.50 - Step 4: Simplify right side
1,310,186.14x = 2,332,326,845,956.14 - Step 5: Solve for x
x = 2,332,326,845,956.14/1,310,186.14 - Step 6: Final answer
x = 1,780,149.23
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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.