Finding the Fourth Proportional to 646,874.09, 892,080.77 and 511,232.09
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Solution
The fourth proportional to 646,874.09, 892,080.77 and 511,232.09 is: 705,021.77
Step by Step Solution
- Step 1: Write the proportion equation
646,874.09 : 892,080.77 = 511,232.09 : x - Step 2: Convert to fraction form
646,874.09/892,080.77 = 511,232.09/x - Step 3: Cross multiply
646,874.09x = 892,080.77 × 511,232.09 - Step 4: Simplify right side
646,874.09x = 456,060,311,709.55 - Step 5: Solve for x
x = 456,060,311,709.55/646,874.09 - Step 6: Final answer
x = 705,021.77
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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.