Finding the Fourth Proportional to 512,160.84, 706,782.54 and 285,806.28
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Solution
The fourth proportional to 512,160.84, 706,782.54 and 285,806.28 is: 394,412.99
Step by Step Solution
- Step 1: Write the proportion equation
512,160.84 : 706,782.54 = 285,806.28 : x - Step 2: Convert to fraction form
512,160.84/706,782.54 = 285,806.28/x - Step 3: Cross multiply
512,160.84x = 706,782.54 × 285,806.28 - Step 4: Simplify right side
512,160.84x = 202,002,888,526.35 - Step 5: Solve for x
x = 202,002,888,526.35/512,160.84 - Step 6: Final answer
x = 394,412.99
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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.