Finding the Fourth Proportional to 1,122,175.80, 1,682,316.18 and 490,609.08
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Solution
The fourth proportional to 1,122,175.80, 1,682,316.18 and 490,609.08 is: 735,499.37
Step by Step Solution
- Step 1: Write the proportion equation
1,122,175.80 : 1,682,316.18 = 490,609.08 : x - Step 2: Convert to fraction form
1,122,175.80/1,682,316.18 = 490,609.08/x - Step 3: Cross multiply
1,122,175.80x = 1,682,316.18 × 490,609.08 - Step 4: Simplify right side
1,122,175.80x = 825,359,593,338.91 - Step 5: Solve for x
x = 825,359,593,338.91/1,122,175.80 - Step 6: Final answer
x = 735,499.37
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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.