Finding the Fourth Proportional to 1,394,189.49, 1,923,976.08 and 782,340.84
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Solution
The fourth proportional to 1,394,189.49, 1,923,976.08 and 782,340.84 is: 1,079,627.32
Step by Step Solution
- Step 1: Write the proportion equation
1,394,189.49 : 1,923,976.08 = 782,340.84 : x - Step 2: Convert to fraction form
1,394,189.49/1,923,976.08 = 782,340.84/x - Step 3: Cross multiply
1,394,189.49x = 1,923,976.08 × 782,340.84 - Step 4: Simplify right side
1,394,189.49x = 1,505,205,062,567.11 - Step 5: Solve for x
x = 1,505,205,062,567.11/1,394,189.49 - Step 6: Final answer
x = 1,079,627.32
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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.