Finding the Fourth Proportional to 998,503.40, 1,497,755.10 and 620,589.80
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Solution
The fourth proportional to 998,503.40, 1,497,755.10 and 620,589.80 is: 930,884.70
Step by Step Solution
- Step 1: Write the proportion equation
998,503.40 : 1,497,755.10 = 620,589.80 : x - Step 2: Convert to fraction form
998,503.40/1,497,755.10 = 620,589.80/x - Step 3: Cross multiply
998,503.40x = 1,497,755.10 × 620,589.80 - Step 4: Simplify right side
998,503.40x = 929,491,537,957.98 - Step 5: Solve for x
x = 929,491,537,957.98/998,503.40 - Step 6: Final answer
x = 930,884.70
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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.