Finding the Fourth Proportional to 713,786.68, 985,107.92 and 427,306.69
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Solution
The fourth proportional to 713,786.68, 985,107.92 and 427,306.69 is: 589,732.50
Step by Step Solution
- Step 1: Write the proportion equation
713,786.68 : 985,107.92 = 427,306.69 : x - Step 2: Convert to fraction form
713,786.68/985,107.92 = 427,306.69/x - Step 3: Cross multiply
713,786.68x = 985,107.92 × 427,306.69 - Step 4: Simplify right side
713,786.68x = 420,943,204,587.99 - Step 5: Solve for x
x = 420,943,204,587.99/713,786.68 - Step 6: Final answer
x = 589,732.50
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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.