Finding the Fourth Proportional to 1,311,044.13, 1,809,274.73 and 738,104.81
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Solution
The fourth proportional to 1,311,044.13, 1,809,274.73 and 738,104.81 is: 1,018,603.67
Step by Step Solution
- Step 1: Write the proportion equation
1,311,044.13 : 1,809,274.73 = 738,104.81 : x - Step 2: Convert to fraction form
1,311,044.13/1,809,274.73 = 738,104.81/x - Step 3: Cross multiply
1,311,044.13x = 1,809,274.73 × 738,104.81 - Step 4: Simplify right side
1,311,044.13x = 1,335,434,368,087.55 - Step 5: Solve for x
x = 1,335,434,368,087.55/1,311,044.13 - Step 6: Final answer
x = 1,018,603.67
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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.