Finding the Fourth Proportional to 1,653,137.40, 2,479,706.10 and 1,642,639.80
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Solution
The fourth proportional to 1,653,137.40, 2,479,706.10 and 1,642,639.80 is: 2,463,959.70
Step by Step Solution
- Step 1: Write the proportion equation
1,653,137.40 : 2,479,706.10 = 1,642,639.80 : x - Step 2: Convert to fraction form
1,653,137.40/2,479,706.10 = 1,642,639.80/x - Step 3: Cross multiply
1,653,137.40x = 2,479,706.10 × 1,642,639.80 - Step 4: Simplify right side
1,653,137.40x = 4,073,263,932,162.78 - Step 5: Solve for x
x = 4,073,263,932,162.78/1,653,137.40 - Step 6: Final answer
x = 2,463,959.70
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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.