Finding the Fourth Proportional to 768,101.84, 1,059,979.88 and 428,570.09
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Solution
The fourth proportional to 768,101.84, 1,059,979.88 and 428,570.09 is: 591,426.36
Step by Step Solution
- Step 1: Write the proportion equation
768,101.84 : 1,059,979.88 = 428,570.09 : x - Step 2: Convert to fraction form
768,101.84/1,059,979.88 = 428,570.09/x - Step 3: Cross multiply
768,101.84x = 1,059,979.88 × 428,570.09 - Step 4: Simplify right side
768,101.84x = 454,275,672,569.79 - Step 5: Solve for x
x = 454,275,672,569.79/768,101.84 - Step 6: Final answer
x = 591,426.36
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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.