Finding the Fourth Proportional to 1,389,649.84, 2,082,185.16 and 1,273,441.84
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Solution
The fourth proportional to 1,389,649.84, 2,082,185.16 and 1,273,441.84 is: 1,908,064.63
Step by Step Solution
- Step 1: Write the proportion equation
1,389,649.84 : 2,082,185.16 = 1,273,441.84 : x - Step 2: Convert to fraction form
1,389,649.84/2,082,185.16 = 1,273,441.84/x - Step 3: Cross multiply
1,389,649.84x = 2,082,185.16 × 1,273,441.84 - Step 4: Simplify right side
1,389,649.84x = 2,651,541,701,371.09 - Step 5: Solve for x
x = 2,651,541,701,371.09/1,389,649.84 - Step 6: Final answer
x = 1,908,064.63
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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.