Finding the Fourth Proportional to 1,616,765.40, 2,421,000.90 and 1,542,115.80
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Solution
The fourth proportional to 1,616,765.40, 2,421,000.90 and 1,542,115.80 is: 2,309,217.99
Step by Step Solution
- Step 1: Write the proportion equation
1,616,765.40 : 2,421,000.90 = 1,542,115.80 : x - Step 2: Convert to fraction form
1,616,765.40/2,421,000.90 = 1,542,115.80/x - Step 3: Cross multiply
1,616,765.40x = 2,421,000.90 × 1,542,115.80 - Step 4: Simplify right side
1,616,765.40x = 3,733,463,739,704.22 - Step 5: Solve for x
x = 3,733,463,739,704.22/1,616,765.40 - Step 6: Final answer
x = 2,309,217.99
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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.