Finding the Fourth Proportional to 1,277,340.82, 1,916,381.06 and 378,804.18
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Solution
The fourth proportional to 1,277,340.82, 1,916,381.06 and 378,804.18 is: 568,315.95
Step by Step Solution
- Step 1: Write the proportion equation
1,277,340.82 : 1,916,381.06 = 378,804.18 : x - Step 2: Convert to fraction form
1,277,340.82/1,916,381.06 = 378,804.18/x - Step 3: Cross multiply
1,277,340.82x = 1,916,381.06 × 378,804.18 - Step 4: Simplify right side
1,277,340.82x = 725,933,162,713.76 - Step 5: Solve for x
x = 725,933,162,713.76/1,277,340.82 - Step 6: Final answer
x = 568,315.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.