Finding the Fourth Proportional to 885,121.92, 1,221,571.44 and 503,205.84
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Solution
The fourth proportional to 885,121.92, 1,221,571.44 and 503,205.84 is: 694,482.72
Step by Step Solution
- Step 1: Write the proportion equation
885,121.92 : 1,221,571.44 = 503,205.84 : x - Step 2: Convert to fraction form
885,121.92/1,221,571.44 = 503,205.84/x - Step 3: Cross multiply
885,121.92x = 1,221,571.44 × 503,205.84 - Step 4: Simplify right side
885,121.92x = 614,701,882,585.21 - Step 5: Solve for x
x = 614,701,882,585.21/885,121.92 - Step 6: Final answer
x = 694,482.72
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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.