Finding the Fourth Proportional to 990,700.08, 1,367,171.36 and 561,063.84
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Solution
The fourth proportional to 990,700.08, 1,367,171.36 and 561,063.84 is: 774,271.07
Step by Step Solution
- Step 1: Write the proportion equation
990,700.08 : 1,367,171.36 = 561,063.84 : x - Step 2: Convert to fraction form
990,700.08/1,367,171.36 = 561,063.84/x - Step 3: Cross multiply
990,700.08x = 1,367,171.36 × 561,063.84 - Step 4: Simplify right side
990,700.08x = 767,070,413,179.62 - Step 5: Solve for x
x = 767,070,413,179.62/990,700.08 - Step 6: Final answer
x = 774,271.07
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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.