Finding the Fourth Proportional to 419,466.76, 578,872.98 and 228,479.68
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Solution
The fourth proportional to 419,466.76, 578,872.98 and 228,479.68 is: 315,306.78
Step by Step Solution
- Step 1: Write the proportion equation
419,466.76 : 578,872.98 = 228,479.68 : x - Step 2: Convert to fraction form
419,466.76/578,872.98 = 228,479.68/x - Step 3: Cross multiply
419,466.76x = 578,872.98 × 228,479.68 - Step 4: Simplify right side
419,466.76x = 132,260,713,231.05 - Step 5: Solve for x
x = 132,260,713,231.05/419,466.76 - Step 6: Final answer
x = 315,306.78
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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.