Finding the Fourth Proportional to 769,721.17, 1,062,212.56 and 430,189.42
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Solution
The fourth proportional to 769,721.17, 1,062,212.56 and 430,189.42 is: 593,659.91
Step by Step Solution
- Step 1: Write the proportion equation
769,721.17 : 1,062,212.56 = 430,189.42 : x - Step 2: Convert to fraction form
769,721.17/1,062,212.56 = 430,189.42/x - Step 3: Cross multiply
769,721.17x = 1,062,212.56 × 430,189.42 - Step 4: Simplify right side
769,721.17x = 456,952,602,952.17 - Step 5: Solve for x
x = 456,952,602,952.17/769,721.17 - Step 6: Final answer
x = 593,659.91
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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.