Finding the Fourth Proportional to 890,921.80, 1,336,382.70 and 838,433.80
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Solution
The fourth proportional to 890,921.80, 1,336,382.70 and 838,433.80 is: 1,257,650.70
Step by Step Solution
- Step 1: Write the proportion equation
890,921.80 : 1,336,382.70 = 838,433.80 : x - Step 2: Convert to fraction form
890,921.80/1,336,382.70 = 838,433.80/x - Step 3: Cross multiply
890,921.80x = 1,336,382.70 × 838,433.80 - Step 4: Simplify right side
890,921.80x = 1,120,468,425,415.26 - Step 5: Solve for x
x = 1,120,468,425,415.26/890,921.80 - Step 6: Final answer
x = 1,257,650.70
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1.5x scale
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.