Finding the Fourth Proportional to 864,201.80, 1,295,201.10 and 485,121.80
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Solution
The fourth proportional to 864,201.80, 1,295,201.10 and 485,121.80 is: 727,064.31
Step by Step Solution
- Step 1: Write the proportion equation
864,201.80 : 1,295,201.10 = 485,121.80 : x - Step 2: Convert to fraction form
864,201.80/1,295,201.10 = 485,121.80/x - Step 3: Cross multiply
864,201.80x = 1,295,201.10 × 485,121.80 - Step 4: Simplify right side
864,201.80x = 628,330,288,993.98 - Step 5: Solve for x
x = 628,330,288,993.98/864,201.80 - Step 6: Final answer
x = 727,064.31
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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.