Finding the Fourth Proportional to 1,439,649.75, 1,986,716.67 and 836,076.63
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Solution
The fourth proportional to 1,439,649.75, 1,986,716.67 and 836,076.63 is: 1,153,785.76
Step by Step Solution
- Step 1: Write the proportion equation
1,439,649.75 : 1,986,716.67 = 836,076.63 : x - Step 2: Convert to fraction form
1,439,649.75/1,986,716.67 = 836,076.63/x - Step 3: Cross multiply
1,439,649.75x = 1,986,716.67 × 836,076.63 - Step 4: Simplify right side
1,439,649.75x = 1,661,047,378,218.42 - Step 5: Solve for x
x = 1,661,047,378,218.42/1,439,649.75 - Step 6: Final answer
x = 1,153,785.76
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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.