Finding the Fourth Proportional to 548,838.80, 822,785.07 and 212,115.68
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Solution
The fourth proportional to 548,838.80, 822,785.07 and 212,115.68 is: 317,990.66
Step by Step Solution
- Step 1: Write the proportion equation
548,838.80 : 822,785.07 = 212,115.68 : x - Step 2: Convert to fraction form
548,838.80/822,785.07 = 212,115.68/x - Step 3: Cross multiply
548,838.80x = 822,785.07 × 212,115.68 - Step 4: Simplify right side
548,838.80x = 174,525,614,616.90 - Step 5: Solve for x
x = 174,525,614,616.90/548,838.80 - Step 6: Final answer
x = 317,990.66
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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.