Finding the Fourth Proportional to 460,616.68, 690,400.88 and 280,304.44
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Solution
The fourth proportional to 460,616.68, 690,400.88 and 280,304.44 is: 420,137.70
Step by Step Solution
- Step 1: Write the proportion equation
460,616.68 : 690,400.88 = 280,304.44 : x - Step 2: Convert to fraction form
460,616.68/690,400.88 = 280,304.44/x - Step 3: Cross multiply
460,616.68x = 690,400.88 × 280,304.44 - Step 4: Simplify right side
460,616.68x = 193,522,432,043.91 - Step 5: Solve for x
x = 193,522,432,043.91/460,616.68 - Step 6: Final answer
x = 420,137.70
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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.