Finding the Fourth Proportional to 755,212.36, 1,042,220.82 and 415,694.92
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Solution
The fourth proportional to 755,212.36, 1,042,220.82 and 415,694.92 is: 573,674.27
Step by Step Solution
- Step 1: Write the proportion equation
755,212.36 : 1,042,220.82 = 415,694.92 : x - Step 2: Convert to fraction form
755,212.36/1,042,220.82 = 415,694.92/x - Step 3: Cross multiply
755,212.36x = 1,042,220.82 × 415,694.92 - Step 4: Simplify right side
755,212.36x = 433,245,900,392.23 - Step 5: Solve for x
x = 433,245,900,392.23/755,212.36 - Step 6: Final answer
x = 573,674.27
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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.