Finding the Fourth Proportional to 4,158,422.40, 6,239,966.40 and 1,761,859.20
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Solution
The fourth proportional to 4,158,422.40, 6,239,966.40 and 1,761,859.20 is: 2,643,777.17
Step by Step Solution
- Step 1: Write the proportion equation
4,158,422.40 : 6,239,966.40 = 1,761,859.20 : x - Step 2: Convert to fraction form
4,158,422.40/6,239,966.40 = 1,761,859.20/x - Step 3: Cross multiply
4,158,422.40x = 6,239,966.40 × 1,761,859.20 - Step 4: Simplify right side
4,158,422.40x = 10,993,942,209,530.88 - Step 5: Solve for x
x = 10,993,942,209,530.88/4,158,422.40 - Step 6: Final answer
x = 2,643,777.17
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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.