Finding the Fourth Proportional to 1,405,668.96, 1,939,703.96 and 824,832.12
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Solution
The fourth proportional to 1,405,668.96, 1,939,703.96 and 824,832.12 is: 1,138,198.38
Step by Step Solution
- Step 1: Write the proportion equation
1,405,668.96 : 1,939,703.96 = 824,832.12 : x - Step 2: Convert to fraction form
1,405,668.96/1,939,703.96 = 824,832.12/x - Step 3: Cross multiply
1,405,668.96x = 1,939,703.96 × 824,832.12 - Step 4: Simplify right side
1,405,668.96x = 1,599,930,129,499.20 - Step 5: Solve for x
x = 1,599,930,129,499.20/1,405,668.96 - Step 6: Final answer
x = 1,138,198.38
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.