Finding the Fourth Proportional to 668,755.30, 922,703.79 and 396,596.92
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Solution
The fourth proportional to 668,755.30, 922,703.79 and 396,596.92 is: 547,197.88
Step by Step Solution
- Step 1: Write the proportion equation
668,755.30 : 922,703.79 = 396,596.92 : x - Step 2: Convert to fraction form
668,755.30/922,703.79 = 396,596.92/x - Step 3: Cross multiply
668,755.30x = 922,703.79 × 396,596.92 - Step 4: Simplify right side
668,755.30x = 365,941,481,186.33 - Step 5: Solve for x
x = 365,941,481,186.33/668,755.30 - Step 6: Final answer
x = 547,197.88
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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.