Finding the Fourth Proportional to 1,277,340.76, 1,916,380.97 and 378,804.12
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Solution
The fourth proportional to 1,277,340.76, 1,916,380.97 and 378,804.12 is: 568,315.86
Step by Step Solution
- Step 1: Write the proportion equation
1,277,340.76 : 1,916,380.97 = 378,804.12 : x - Step 2: Convert to fraction form
1,277,340.76/1,916,380.97 = 378,804.12/x - Step 3: Cross multiply
1,277,340.76x = 1,916,380.97 × 378,804.12 - Step 4: Simplify right side
1,277,340.76x = 725,933,005,031.58 - Step 5: Solve for x
x = 725,933,005,031.58/1,277,340.76 - Step 6: Final answer
x = 568,315.86
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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.