Finding the Fourth Proportional to 821,777.01, 1,134,049.77 and 459,201.21
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Solution
The fourth proportional to 821,777.01, 1,134,049.77 and 459,201.21 is: 633,696.27
Step by Step Solution
- Step 1: Write the proportion equation
821,777.01 : 1,134,049.77 = 459,201.21 : x - Step 2: Convert to fraction form
821,777.01/1,134,049.77 = 459,201.21/x - Step 3: Cross multiply
821,777.01x = 1,134,049.77 × 459,201.21 - Step 4: Simplify right side
821,777.01x = 520,757,026,584.22 - Step 5: Solve for x
x = 520,757,026,584.22/821,777.01 - Step 6: Final answer
x = 633,696.27
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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.