Finding the Fourth Proportional to 457,682.80, 686,524.20 and 414,137.20
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Solution
The fourth proportional to 457,682.80, 686,524.20 and 414,137.20 is: 621,205.80
Step by Step Solution
- Step 1: Write the proportion equation
457,682.80 : 686,524.20 = 414,137.20 : x - Step 2: Convert to fraction form
457,682.80/686,524.20 = 414,137.20/x - Step 3: Cross multiply
457,682.80x = 686,524.20 × 414,137.20 - Step 4: Simplify right side
457,682.80x = 284,315,209,920.24 - Step 5: Solve for x
x = 284,315,209,920.24/457,682.80 - Step 6: Final answer
x = 621,205.80
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1.5x scale
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.