Finding the Fourth Proportional to 836,336.80, 1,253,122.80 and 711,920.80
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Solution
The fourth proportional to 836,336.80, 1,253,122.80 and 711,920.80 is: 1,066,704.45
Step by Step Solution
- Step 1: Write the proportion equation
836,336.80 : 1,253,122.80 = 711,920.80 : x - Step 2: Convert to fraction form
836,336.80/1,253,122.80 = 711,920.80/x - Step 3: Cross multiply
836,336.80x = 1,253,122.80 × 711,920.80 - Step 4: Simplify right side
836,336.80x = 892,124,186,274.24 - Step 5: Solve for x
x = 892,124,186,274.24/836,336.80 - Step 6: Final answer
x = 1,066,704.45
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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.