Finding the Fourth Proportional to 1,215,026.40, 1,822,366.80 and 416,344.80
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Solution
The fourth proportional to 1,215,026.40, 1,822,366.80 and 416,344.80 is: 624,457.99
Step by Step Solution
- Step 1: Write the proportion equation
1,215,026.40 : 1,822,366.80 = 416,344.80 : x - Step 2: Convert to fraction form
1,215,026.40/1,822,366.80 = 416,344.80/x - Step 3: Cross multiply
1,215,026.40x = 1,822,366.80 × 416,344.80 - Step 4: Simplify right side
1,215,026.40x = 758,732,940,872.64 - Step 5: Solve for x
x = 758,732,940,872.64/1,215,026.40 - Step 6: Final answer
x = 624,457.99
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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.