Finding the Fourth Proportional to 1,419,679.08, 2,129,824.80 and 408,794.22
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Solution
The fourth proportional to 1,419,679.08, 2,129,824.80 and 408,794.22 is: 613,279.49
Step by Step Solution
- Step 1: Write the proportion equation
1,419,679.08 : 2,129,824.80 = 408,794.22 : x - Step 2: Convert to fraction form
1,419,679.08/2,129,824.80 = 408,794.22/x - Step 3: Cross multiply
1,419,679.08x = 2,129,824.80 × 408,794.22 - Step 4: Simplify right side
1,419,679.08x = 870,660,067,852.66 - Step 5: Solve for x
x = 870,660,067,852.66/1,419,679.08 - Step 6: Final answer
x = 613,279.49
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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.