Finding the Fourth Proportional to 760,880.12, 1,049,976.60 and 438,570.68
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Solution
The fourth proportional to 760,880.12, 1,049,976.60 and 438,570.68 is: 605,205.66
Step by Step Solution
- Step 1: Write the proportion equation
760,880.12 : 1,049,976.60 = 438,570.68 : x - Step 2: Convert to fraction form
760,880.12/1,049,976.60 = 438,570.68/x - Step 3: Cross multiply
760,880.12x = 1,049,976.60 × 438,570.68 - Step 4: Simplify right side
760,880.12x = 460,488,951,446.09 - Step 5: Solve for x
x = 460,488,951,446.09/760,880.12 - Step 6: Final answer
x = 605,205.66
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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.