Finding the Fourth Proportional to 770,717.97, 1,155,282.35 and 321,700.14
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Solution
The fourth proportional to 770,717.97, 1,155,282.35 and 321,700.14 is: 482,218.54
Step by Step Solution
- Step 1: Write the proportion equation
770,717.97 : 1,155,282.35 = 321,700.14 : x - Step 2: Convert to fraction form
770,717.97/1,155,282.35 = 321,700.14/x - Step 3: Cross multiply
770,717.97x = 1,155,282.35 × 321,700.14 - Step 4: Simplify right side
770,717.97x = 371,654,492,126.03 - Step 5: Solve for x
x = 371,654,492,126.03/770,717.97 - Step 6: Final answer
x = 482,218.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.