Finding the Fourth Proportional to 1,419,203.82, 2,129,745.95 and 779,953.98
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Solution
The fourth proportional to 1,419,203.82, 2,129,745.95 and 779,953.98 is: 1,170,447.69
Step by Step Solution
- Step 1: Write the proportion equation
1,419,203.82 : 2,129,745.95 = 779,953.98 : x - Step 2: Convert to fraction form
1,419,203.82/2,129,745.95 = 779,953.98/x - Step 3: Cross multiply
1,419,203.82x = 2,129,745.95 × 779,953.98 - Step 4: Simplify right side
1,419,203.82x = 1,661,103,830,091.38 - Step 5: Solve for x
x = 1,661,103,830,091.38/1,419,203.82 - Step 6: Final answer
x = 1,170,447.69
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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.