Finding the Fourth Proportional to 986,540.10, 1,479,810.15 and 827,107.80
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Solution
The fourth proportional to 986,540.10, 1,479,810.15 and 827,107.80 is: 1,240,661.70
Step by Step Solution
- Step 1: Write the proportion equation
986,540.10 : 1,479,810.15 = 827,107.80 : x - Step 2: Convert to fraction form
986,540.10/1,479,810.15 = 827,107.80/x - Step 3: Cross multiply
986,540.10x = 1,479,810.15 × 827,107.80 - Step 4: Simplify right side
986,540.10x = 1,223,962,517,584.17 - Step 5: Solve for x
x = 1,223,962,517,584.17/986,540.10 - Step 6: Final answer
x = 1,240,661.70
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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.