Finding the Fourth Proportional to 1,439,647.75, 1,986,713.90 and 836,074.63
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Solution
The fourth proportional to 1,439,647.75, 1,986,713.90 and 836,074.63 is: 1,153,782.99
Step by Step Solution
- Step 1: Write the proportion equation
1,439,647.75 : 1,986,713.90 = 836,074.63 : x - Step 2: Convert to fraction form
1,439,647.75/1,986,713.90 = 836,074.63/x - Step 3: Cross multiply
1,439,647.75x = 1,986,713.90 × 836,074.63 - Step 4: Simplify right side
1,439,647.75x = 1,661,041,088,858.36 - Step 5: Solve for x
x = 1,661,041,088,858.36/1,439,647.75 - Step 6: Final answer
x = 1,153,782.99
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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.