Finding the Fourth Proportional to 769,431.99, 1,061,871.12 and 425,260.52
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Solution
The fourth proportional to 769,431.99, 1,061,871.12 and 425,260.52 is: 586,889.89
Step by Step Solution
- Step 1: Write the proportion equation
769,431.99 : 1,061,871.12 = 425,260.52 : x - Step 2: Convert to fraction form
769,431.99/1,061,871.12 = 425,260.52/x - Step 3: Cross multiply
769,431.99x = 1,061,871.12 × 425,260.52 - Step 4: Simplify right side
769,431.99x = 451,571,857,228.52 - Step 5: Solve for x
x = 451,571,857,228.52/769,431.99 - Step 6: Final answer
x = 586,889.89
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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.