Finding the Fourth Proportional to 769,132.28, 1,061,423.97 and 424,990.49
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Solution
The fourth proportional to 769,132.28, 1,061,423.97 and 424,990.49 is: 586,498.70
Step by Step Solution
- Step 1: Write the proportion equation
769,132.28 : 1,061,423.97 = 424,990.49 : x - Step 2: Convert to fraction form
769,132.28/1,061,423.97 = 424,990.49/x - Step 3: Cross multiply
769,132.28x = 1,061,423.97 × 424,990.49 - Step 4: Simplify right side
769,132.28x = 451,095,086,207.21 - Step 5: Solve for x
x = 451,095,086,207.21/769,132.28 - Step 6: Final answer
x = 586,498.70
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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.