Finding the Fourth Proportional to 713,964.24, 985,274.28 and 391,704.12
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Solution
The fourth proportional to 713,964.24, 985,274.28 and 391,704.12 is: 540,553.68
Step by Step Solution
- Step 1: Write the proportion equation
713,964.24 : 985,274.28 = 391,704.12 : x - Step 2: Convert to fraction form
713,964.24/985,274.28 = 391,704.12/x - Step 3: Cross multiply
713,964.24x = 985,274.28 × 391,704.12 - Step 4: Simplify right side
713,964.24x = 385,935,994,806.03 - Step 5: Solve for x
x = 385,935,994,806.03/713,964.24 - Step 6: Final answer
x = 540,553.68
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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.