Finding the Fourth Proportional to 769,725.19, 1,062,218.09 and 430,193.44
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Solution
The fourth proportional to 769,725.19, 1,062,218.09 and 430,193.44 is: 593,665.45
Step by Step Solution
- Step 1: Write the proportion equation
769,725.19 : 1,062,218.09 = 430,193.44 : x - Step 2: Convert to fraction form
769,725.19/1,062,218.09 = 430,193.44/x - Step 3: Cross multiply
769,725.19x = 1,062,218.09 × 430,193.44 - Step 4: Simplify right side
769,725.19x = 456,959,254,167.33 - Step 5: Solve for x
x = 456,959,254,167.33/769,725.19 - Step 6: Final answer
x = 593,665.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.