Finding the Fourth Proportional to 886,485.75, 1,329,728.66 and 221,637.75
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Solution
The fourth proportional to 886,485.75, 1,329,728.66 and 221,637.75 is: 332,456.63
Step by Step Solution
- Step 1: Write the proportion equation
886,485.75 : 1,329,728.66 = 221,637.75 : x - Step 2: Convert to fraction form
886,485.75/1,329,728.66 = 221,637.75/x - Step 3: Cross multiply
886,485.75x = 1,329,728.66 × 221,637.75 - Step 4: Simplify right side
886,485.75x = 294,718,068,312.92 - Step 5: Solve for x
x = 294,718,068,312.92/886,485.75 - Step 6: Final answer
x = 332,456.63
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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.