Finding the Fourth Proportional to 1,188,514.01, 1,782,324.20 and 430,168.12
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Solution
The fourth proportional to 1,188,514.01, 1,782,324.20 and 430,168.12 is: 645,090.46
Step by Step Solution
- Step 1: Write the proportion equation
1,188,514.01 : 1,782,324.20 = 430,168.12 : x - Step 2: Convert to fraction form
1,188,514.01/1,782,324.20 = 430,168.12/x - Step 3: Cross multiply
1,188,514.01x = 1,782,324.20 × 430,168.12 - Step 4: Simplify right side
1,188,514.01x = 766,699,046,964.11 - Step 5: Solve for x
x = 766,699,046,964.11/1,188,514.01 - Step 6: Final answer
x = 645,090.46
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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.