Finding the Fourth Proportional to 876,205.09, 1,313,686.41 and 389,621.26
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Solution
The fourth proportional to 876,205.09, 1,313,686.41 and 389,621.26 is: 584,155.65
Step by Step Solution
- Step 1: Write the proportion equation
876,205.09 : 1,313,686.41 = 389,621.26 : x - Step 2: Convert to fraction form
876,205.09/1,313,686.41 = 389,621.26/x - Step 3: Cross multiply
876,205.09x = 1,313,686.41 × 389,621.26 - Step 4: Simplify right side
876,205.09x = 511,840,154,309.08 - Step 5: Solve for x
x = 511,840,154,309.08/876,205.09 - Step 6: Final answer
x = 584,155.65
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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.