Finding the Fourth Proportional to 498,198.92, 687,343.12 and 302,028.66
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Solution
The fourth proportional to 498,198.92, 687,343.12 and 302,028.66 is: 416,695.65
Step by Step Solution
- Step 1: Write the proportion equation
498,198.92 : 687,343.12 = 302,028.66 : x - Step 2: Convert to fraction form
498,198.92/687,343.12 = 302,028.66/x - Step 3: Cross multiply
498,198.92x = 687,343.12 × 302,028.66 - Step 4: Simplify right side
498,198.92x = 207,597,320,738.75 - Step 5: Solve for x
x = 207,597,320,738.75/498,198.92 - Step 6: Final answer
x = 416,695.65
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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.