Finding the Fourth Proportional to 1,811,220.10, 2,716,830.15 and 1,279,779.10
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Solution
The fourth proportional to 1,811,220.10, 2,716,830.15 and 1,279,779.10 is: 1,919,668.65
Step by Step Solution
- Step 1: Write the proportion equation
1,811,220.10 : 2,716,830.15 = 1,279,779.10 : x - Step 2: Convert to fraction form
1,811,220.10/2,716,830.15 = 1,279,779.10/x - Step 3: Cross multiply
1,811,220.10x = 2,716,830.15 × 1,279,779.10 - Step 4: Simplify right side
1,811,220.10x = 3,476,942,444,219.87 - Step 5: Solve for x
x = 3,476,942,444,219.87/1,811,220.10 - Step 6: Final answer
x = 1,919,668.65
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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.