Finding the Fourth Proportional to 393,416.40, 587,884.88 and 295,403.96
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Solution
The fourth proportional to 393,416.40, 587,884.88 and 295,403.96 is: 441,424.20
Step by Step Solution
- Step 1: Write the proportion equation
393,416.40 : 587,884.88 = 295,403.96 : x - Step 2: Convert to fraction form
393,416.40/587,884.88 = 295,403.96/x - Step 3: Cross multiply
393,416.40x = 587,884.88 × 295,403.96 - Step 4: Simplify right side
393,416.40x = 173,663,521,576.13 - Step 5: Solve for x
x = 173,663,521,576.13/393,416.40 - Step 6: Final answer
x = 441,424.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.