Finding the Fourth Proportional to 5,628,894.80, 8,442,694.20 and 1,639,806.80
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Solution
The fourth proportional to 5,628,894.80, 8,442,694.20 and 1,639,806.80 is: 2,459,521.42
Step by Step Solution
- Step 1: Write the proportion equation
5,628,894.80 : 8,442,694.20 = 1,639,806.80 : x - Step 2: Convert to fraction form
5,628,894.80/8,442,694.20 = 1,639,806.80/x - Step 3: Cross multiply
5,628,894.80x = 8,442,694.20 × 1,639,806.80 - Step 4: Simplify right side
5,628,894.80x = 13,844,387,359,480.56 - Step 5: Solve for x
x = 13,844,387,359,480.56/5,628,894.80 - Step 6: Final answer
x = 2,459,521.42
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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.