Finding the Fourth Proportional to 416,587.80, 574,891.20 and 225,601.68
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Solution
The fourth proportional to 416,587.80, 574,891.20 and 225,601.68 is: 311,330.34
Step by Step Solution
- Step 1: Write the proportion equation
416,587.80 : 574,891.20 = 225,601.68 : x - Step 2: Convert to fraction form
416,587.80/574,891.20 = 225,601.68/x - Step 3: Cross multiply
416,587.80x = 574,891.20 × 225,601.68 - Step 4: Simplify right side
416,587.80x = 129,696,420,537.22 - Step 5: Solve for x
x = 129,696,420,537.22/416,587.80 - Step 6: Final answer
x = 311,330.34
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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.