Finding the Fourth Proportional to 760,620.09, 1,049,615.76 and 416,390.05
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Solution
The fourth proportional to 760,620.09, 1,049,615.76 and 416,390.05 is: 574,596.39
Step by Step Solution
- Step 1: Write the proportion equation
760,620.09 : 1,049,615.76 = 416,390.05 : x - Step 2: Convert to fraction form
760,620.09/1,049,615.76 = 416,390.05/x - Step 3: Cross multiply
760,620.09x = 1,049,615.76 × 416,390.05 - Step 4: Simplify right side
760,620.09x = 437,049,557,724.61 - Step 5: Solve for x
x = 437,049,557,724.61/760,620.09 - Step 6: Final answer
x = 574,596.39
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1.5x scale
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.