Finding the Fourth Proportional to 3,416,554.20, 5,126,799.60 and 1,288,165.80
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Solution
The fourth proportional to 3,416,554.20, 5,126,799.60 and 1,288,165.80 is: 1,932,990.82
Step by Step Solution
- Step 1: Write the proportion equation
3,416,554.20 : 5,126,799.60 = 1,288,165.80 : x - Step 2: Convert to fraction form
3,416,554.20/5,126,799.60 = 1,288,165.80/x - Step 3: Cross multiply
3,416,554.20x = 5,126,799.60 × 1,288,165.80 - Step 4: Simplify right side
3,416,554.20x = 6,604,167,908,173.68 - Step 5: Solve for x
x = 6,604,167,908,173.68/3,416,554.20 - Step 6: Final answer
x = 1,932,990.82
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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.