Finding the Fourth Proportional to 2,688,467.40, 3,711,456.24 and 1,821,880.32
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Solution
The fourth proportional to 2,688,467.40, 3,711,456.24 and 1,821,880.32 is: 2,515,124.07
Step by Step Solution
- Step 1: Write the proportion equation
2,688,467.40 : 3,711,456.24 = 1,821,880.32 : x - Step 2: Convert to fraction form
2,688,467.40/3,711,456.24 = 1,821,880.32/x - Step 3: Cross multiply
2,688,467.40x = 3,711,456.24 × 1,821,880.32 - Step 4: Simplify right side
2,688,467.40x = 6,761,829,082,197.20 - Step 5: Solve for x
x = 6,761,829,082,197.20/2,688,467.40 - Step 6: Final answer
x = 2,515,124.07
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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.