Finding the Fourth Proportional to 618,964.26, 928,446.39 and 408,552.99
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Solution
The fourth proportional to 618,964.26, 928,446.39 and 408,552.99 is: 612,829.49
Step by Step Solution
- Step 1: Write the proportion equation
618,964.26 : 928,446.39 = 408,552.99 : x - Step 2: Convert to fraction form
618,964.26/928,446.39 = 408,552.99/x - Step 3: Cross multiply
618,964.26x = 928,446.39 × 408,552.99 - Step 4: Simplify right side
618,964.26x = 379,319,548,689.21 - Step 5: Solve for x
x = 379,319,548,689.21/618,964.26 - Step 6: Final answer
x = 612,829.49
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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.