Finding the Fourth Proportional to 451,352.80, 622,930.68 and 279,326.20
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Solution
The fourth proportional to 451,352.80, 622,930.68 and 279,326.20 is: 385,509.65
Step by Step Solution
- Step 1: Write the proportion equation
451,352.80 : 622,930.68 = 279,326.20 : x - Step 2: Convert to fraction form
451,352.80/622,930.68 = 279,326.20/x - Step 3: Cross multiply
451,352.80x = 622,930.68 × 279,326.20 - Step 4: Simplify right side
451,352.80x = 174,000,858,311.19 - Step 5: Solve for x
x = 174,000,858,311.19/451,352.80 - Step 6: Final answer
x = 385,509.65
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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.