Finding the Fourth Proportional to 453,847.12, 680,770.68 and 453,191.20
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Solution
The fourth proportional to 453,847.12, 680,770.68 and 453,191.20 is: 679,786.80
Step by Step Solution
- Step 1: Write the proportion equation
453,847.12 : 680,770.68 = 453,191.20 : x - Step 2: Convert to fraction form
453,847.12/680,770.68 = 453,191.20/x - Step 3: Cross multiply
453,847.12x = 680,770.68 × 453,191.20 - Step 4: Simplify right side
453,847.12x = 308,519,281,394.02 - Step 5: Solve for x
x = 308,519,281,394.02/453,847.12 - Step 6: Final answer
x = 679,786.80
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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.