Finding the Fourth Proportional to 857,783.93, 1,285,839.36 and 408,383.98
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Solution
The fourth proportional to 857,783.93, 1,285,839.36 and 408,383.98 is: 612,177.70
Step by Step Solution
- Step 1: Write the proportion equation
857,783.93 : 1,285,839.36 = 408,383.98 : x - Step 2: Convert to fraction form
857,783.93/1,285,839.36 = 408,383.98/x - Step 3: Cross multiply
857,783.93x = 1,285,839.36 × 408,383.98 - Step 4: Simplify right side
857,783.93x = 525,116,192,262.85 - Step 5: Solve for x
x = 525,116,192,262.85/857,783.93 - Step 6: Final answer
x = 612,177.70
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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.