Finding the Fourth Proportional to 451,211.40, 676,817.10 and 283,249.80
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Solution
The fourth proportional to 451,211.40, 676,817.10 and 283,249.80 is: 424,874.70
Step by Step Solution
- Step 1: Write the proportion equation
451,211.40 : 676,817.10 = 283,249.80 : x - Step 2: Convert to fraction form
451,211.40/676,817.10 = 283,249.80/x - Step 3: Cross multiply
451,211.40x = 676,817.10 × 283,249.80 - Step 4: Simplify right side
451,211.40x = 191,708,308,211.58 - Step 5: Solve for x
x = 191,708,308,211.58/451,211.40 - Step 6: Final answer
x = 424,874.70
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Double scale
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Similar ratio
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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.