Finding the Fourth Proportional to 886,486.26, 1,329,729.38 and 221,638.26
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Solution
The fourth proportional to 886,486.26, 1,329,729.38 and 221,638.26 is: 332,457.39
Step by Step Solution
- Step 1: Write the proportion equation
886,486.26 : 1,329,729.38 = 221,638.26 : x - Step 2: Convert to fraction form
886,486.26/1,329,729.38 = 221,638.26/x - Step 3: Cross multiply
886,486.26x = 1,329,729.38 × 221,638.26 - Step 4: Simplify right side
886,486.26x = 294,718,906,054.08 - Step 5: Solve for x
x = 294,718,906,054.08/886,486.26 - Step 6: Final answer
x = 332,457.39
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1.5x scale
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.