Finding the Fourth Proportional to 1,490,252.20, 2,235,378.30 and 543,653.80
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Solution
The fourth proportional to 1,490,252.20, 2,235,378.30 and 543,653.80 is: 815,480.70
Step by Step Solution
- Step 1: Write the proportion equation
1,490,252.20 : 2,235,378.30 = 543,653.80 : x - Step 2: Convert to fraction form
1,490,252.20/2,235,378.30 = 543,653.80/x - Step 3: Cross multiply
1,490,252.20x = 2,235,378.30 × 543,653.80 - Step 4: Simplify right side
1,490,252.20x = 1,215,271,907,232.54 - Step 5: Solve for x
x = 1,215,271,907,232.54/1,490,252.20 - Step 6: Final answer
x = 815,480.70
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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.