Finding the Fourth Proportional to 1,836,701.80, 2,755,052.70 and 1,818,987.10
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Solution
The fourth proportional to 1,836,701.80, 2,755,052.70 and 1,818,987.10 is: 2,728,480.65
Step by Step Solution
- Step 1: Write the proportion equation
1,836,701.80 : 2,755,052.70 = 1,818,987.10 : x - Step 2: Convert to fraction form
1,836,701.80/2,755,052.70 = 1,818,987.10/x - Step 3: Cross multiply
1,836,701.80x = 2,755,052.70 × 1,818,987.10 - Step 4: Simplify right side
1,836,701.80x = 5,011,405,321,120.17 - Step 5: Solve for x
x = 5,011,405,321,120.17/1,836,701.80 - Step 6: Final answer
x = 2,728,480.65
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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.