Finding the Fourth Proportional to 407,622.80, 611,563.37 and 317,972.88
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Solution
The fourth proportional to 407,622.80, 611,563.37 and 317,972.88 is: 477,060.09
Step by Step Solution
- Step 1: Write the proportion equation
407,622.80 : 611,563.37 = 317,972.88 : x - Step 2: Convert to fraction form
407,622.80/611,563.37 = 317,972.88/x - Step 3: Cross multiply
407,622.80x = 611,563.37 × 317,972.88 - Step 4: Simplify right side
407,622.80x = 194,460,568,487.67 - Step 5: Solve for x
x = 194,460,568,487.67/407,622.80 - Step 6: Final answer
x = 477,060.09
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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.