Finding the Fourth Proportional to 548,840.80, 822,788.07 and 212,117.68
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Solution
The fourth proportional to 548,840.80, 822,788.07 and 212,117.68 is: 317,993.66
Step by Step Solution
- Step 1: Write the proportion equation
548,840.80 : 822,788.07 = 212,117.68 : x - Step 2: Convert to fraction form
548,840.80/822,788.07 = 212,117.68/x - Step 3: Cross multiply
548,840.80x = 822,788.07 × 212,117.68 - Step 4: Simplify right side
548,840.80x = 174,527,896,540.08 - Step 5: Solve for x
x = 174,527,896,540.08/548,840.80 - Step 6: Final answer
x = 317,993.66
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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.