Finding the Fourth Proportional to 990,704.08, 1,367,176.88 and 561,067.84
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Solution
The fourth proportional to 990,704.08, 1,367,176.88 and 561,067.84 is: 774,276.59
Step by Step Solution
- Step 1: Write the proportion equation
990,704.08 : 1,367,176.88 = 561,067.84 : x - Step 2: Convert to fraction form
990,704.08/1,367,176.88 = 561,067.84/x - Step 3: Cross multiply
990,704.08x = 1,367,176.88 × 561,067.84 - Step 4: Simplify right side
990,704.08x = 767,078,978,959.54 - Step 5: Solve for x
x = 767,078,978,959.54/990,704.08 - Step 6: Final answer
x = 774,276.59
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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.