Finding the Fourth Proportional to 769,724.19, 1,062,216.71 and 430,192.44
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Solution
The fourth proportional to 769,724.19, 1,062,216.71 and 430,192.44 is: 593,664.08
Step by Step Solution
- Step 1: Write the proportion equation
769,724.19 : 1,062,216.71 = 430,192.44 : x - Step 2: Convert to fraction form
769,724.19/1,062,216.71 = 430,192.44/x - Step 3: Cross multiply
769,724.19x = 1,062,216.71 × 430,192.44 - Step 4: Simplify right side
769,724.19x = 456,957,599,359.15 - Step 5: Solve for x
x = 456,957,599,359.15/769,724.19 - Step 6: Final answer
x = 593,664.08
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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.