Finding the Fourth Proportional to 669,731.79, 1,004,736.09 and 220,479.62
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Solution
The fourth proportional to 669,731.79, 1,004,736.09 and 220,479.62 is: 330,764.99
Step by Step Solution
- Step 1: Write the proportion equation
669,731.79 : 1,004,736.09 = 220,479.62 : x - Step 2: Convert to fraction form
669,731.79/1,004,736.09 = 220,479.62/x - Step 3: Cross multiply
669,731.79x = 1,004,736.09 × 220,479.62 - Step 4: Simplify right side
669,731.79x = 221,523,831,323.49 - Step 5: Solve for x
x = 221,523,831,323.49/669,731.79 - Step 6: Final answer
x = 330,764.99
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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.