Finding the Fourth Proportional to 3,183,756.10, 4,393,105.67 and 1,788,264.20
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Solution
The fourth proportional to 3,183,756.10, 4,393,105.67 and 1,788,264.20 is: 2,467,536.26
Step by Step Solution
- Step 1: Write the proportion equation
3,183,756.10 : 4,393,105.67 = 1,788,264.20 : x - Step 2: Convert to fraction form
3,183,756.10/4,393,105.67 = 1,788,264.20/x - Step 3: Cross multiply
3,183,756.10x = 4,393,105.67 × 1,788,264.20 - Step 4: Simplify right side
3,183,756.10x = 7,856,033,611,931.44 - Step 5: Solve for x
x = 7,856,033,611,931.44/3,183,756.10 - Step 6: Final answer
x = 2,467,536.26
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.