Finding the Fourth Proportional to 415,207.80, 622,811.70 and 265,908.60
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Solution
The fourth proportional to 415,207.80, 622,811.70 and 265,908.60 is: 398,862.90
Step by Step Solution
- Step 1: Write the proportion equation
415,207.80 : 622,811.70 = 265,908.60 : x - Step 2: Convert to fraction form
415,207.80/622,811.70 = 265,908.60/x - Step 3: Cross multiply
415,207.80x = 622,811.70 × 265,908.60 - Step 4: Simplify right side
415,207.80x = 165,610,987,210.62 - Step 5: Solve for x
x = 165,610,987,210.62/415,207.80 - Step 6: Final answer
x = 398,862.90
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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.