Finding the Fourth Proportional to 848,315.36, 1,272,439.80 and 287,349.84
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Solution
The fourth proportional to 848,315.36, 1,272,439.80 and 287,349.84 is: 431,013.50
Step by Step Solution
- Step 1: Write the proportion equation
848,315.36 : 1,272,439.80 = 287,349.84 : x - Step 2: Convert to fraction form
848,315.36/1,272,439.80 = 287,349.84/x - Step 3: Cross multiply
848,315.36x = 1,272,439.80 × 287,349.84 - Step 4: Simplify right side
848,315.36x = 365,635,372,939.63 - Step 5: Solve for x
x = 365,635,372,939.63/848,315.36 - Step 6: Final answer
x = 431,013.50
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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.