Finding the Fourth Proportional to 1,259,691.99, 1,890,629.82 and 661,076.07
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Solution
The fourth proportional to 1,259,691.99, 1,890,629.82 and 661,076.07 is: 992,187.09
Step by Step Solution
- Step 1: Write the proportion equation
1,259,691.99 : 1,890,629.82 = 661,076.07 : x - Step 2: Convert to fraction form
1,259,691.99/1,890,629.82 = 661,076.07/x - Step 3: Cross multiply
1,259,691.99x = 1,890,629.82 × 661,076.07 - Step 4: Simplify right side
1,259,691.99x = 1,249,850,131,230.41 - Step 5: Solve for x
x = 1,249,850,131,230.41/1,259,691.99 - Step 6: Final answer
x = 992,187.09
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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.