Finding the Fourth Proportional to 1,637,741.12, 2,456,611.62 and 639,769.28
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Solution
The fourth proportional to 1,637,741.12, 2,456,611.62 and 639,769.28 is: 959,653.90
Step by Step Solution
- Step 1: Write the proportion equation
1,637,741.12 : 2,456,611.62 = 639,769.28 : x - Step 2: Convert to fraction form
1,637,741.12/2,456,611.62 = 639,769.28/x - Step 3: Cross multiply
1,637,741.12x = 2,456,611.62 × 639,769.28 - Step 4: Simplify right side
1,637,741.12x = 1,571,664,647,367.03 - Step 5: Solve for x
x = 1,571,664,647,367.03/1,637,741.12 - Step 6: Final answer
x = 959,653.90
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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.