Finding the Fourth Proportional to 1,786,786.99, 2,678,995.62 and 649,414.15
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Solution
The fourth proportional to 1,786,786.99, 2,678,995.62 and 649,414.15 is: 973,690.58
Step by Step Solution
- Step 1: Write the proportion equation
1,786,786.99 : 2,678,995.62 = 649,414.15 : x - Step 2: Convert to fraction form
1,786,786.99/2,678,995.62 = 649,414.15/x - Step 3: Cross multiply
1,786,786.99x = 2,678,995.62 × 649,414.15 - Step 4: Simplify right side
1,786,786.99x = 1,739,777,663,416.02 - Step 5: Solve for x
x = 1,739,777,663,416.02/1,786,786.99 - Step 6: Final answer
x = 973,690.58
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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.