Finding the Fourth Proportional to 678,615.20, 1,017,504.84 and 229,293.62
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Solution
The fourth proportional to 678,615.20, 1,017,504.84 and 229,293.62 is: 343,799.21
Step by Step Solution
- Step 1: Write the proportion equation
678,615.20 : 1,017,504.84 = 229,293.62 : x - Step 2: Convert to fraction form
678,615.20/1,017,504.84 = 229,293.62/x - Step 3: Cross multiply
678,615.20x = 1,017,504.84 × 229,293.62 - Step 4: Simplify right side
678,615.20x = 233,307,368,131.12 - Step 5: Solve for x
x = 233,307,368,131.12/678,615.20 - Step 6: Final answer
x = 343,799.21
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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.