Finding the Fourth Proportional to 480,108.80, 720,163.20 and 426,195.20
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Solution
The fourth proportional to 480,108.80, 720,163.20 and 426,195.20 is: 639,292.80
Step by Step Solution
- Step 1: Write the proportion equation
480,108.80 : 720,163.20 = 426,195.20 : x - Step 2: Convert to fraction form
480,108.80/720,163.20 = 426,195.20/x - Step 3: Cross multiply
480,108.80x = 720,163.20 × 426,195.20 - Step 4: Simplify right side
480,108.80x = 306,930,099,056.64 - Step 5: Solve for x
x = 306,930,099,056.64/480,108.80 - Step 6: Final answer
x = 639,292.80
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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.