Finding the Fourth Proportional to 419,450.08, 578,967.60 and 285,391.84
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Solution
The fourth proportional to 419,450.08, 578,967.60 and 285,391.84 is: 393,926.80
Step by Step Solution
- Step 1: Write the proportion equation
419,450.08 : 578,967.60 = 285,391.84 : x - Step 2: Convert to fraction form
419,450.08/578,967.60 = 285,391.84/x - Step 3: Cross multiply
419,450.08x = 578,967.60 × 285,391.84 - Step 4: Simplify right side
419,450.08x = 165,232,628,664.38 - Step 5: Solve for x
x = 165,232,628,664.38/419,450.08 - Step 6: Final answer
x = 393,926.80
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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.