Finding the Fourth Proportional to 1,647,964.80, 2,473,790.40 and 1,539,676.80
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Solution
The fourth proportional to 1,647,964.80, 2,473,790.40 and 1,539,676.80 is: 2,311,237.28
Step by Step Solution
- Step 1: Write the proportion equation
1,647,964.80 : 2,473,790.40 = 1,539,676.80 : x - Step 2: Convert to fraction form
1,647,964.80/2,473,790.40 = 1,539,676.80/x - Step 3: Cross multiply
1,647,964.80x = 2,473,790.40 × 1,539,676.80 - Step 4: Simplify right side
1,647,964.80x = 3,808,837,686,942.72 - Step 5: Solve for x
x = 3,808,837,686,942.72/1,647,964.80 - Step 6: Final answer
x = 2,311,237.28
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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.