Finding the Fourth Proportional to 453,805.80, 680,708.70 and 442,141.80
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Solution
The fourth proportional to 453,805.80, 680,708.70 and 442,141.80 is: 663,212.70
Step by Step Solution
- Step 1: Write the proportion equation
453,805.80 : 680,708.70 = 442,141.80 : x - Step 2: Convert to fraction form
453,805.80/680,708.70 = 442,141.80/x - Step 3: Cross multiply
453,805.80x = 680,708.70 × 442,141.80 - Step 4: Simplify right side
453,805.80x = 300,969,769,893.66 - Step 5: Solve for x
x = 300,969,769,893.66/453,805.80 - Step 6: Final answer
x = 663,212.70
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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.