Finding the Fourth Proportional to 510,843.69, 765,084.56 and 493,128.99
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Solution
The fourth proportional to 510,843.69, 765,084.56 and 493,128.99 is: 738,553.46
Step by Step Solution
- Step 1: Write the proportion equation
510,843.69 : 765,084.56 = 493,128.99 : x - Step 2: Convert to fraction form
510,843.69/765,084.56 = 493,128.99/x - Step 3: Cross multiply
510,843.69x = 765,084.56 × 493,128.99 - Step 4: Simplify right side
510,843.69x = 377,285,373,871.75 - Step 5: Solve for x
x = 377,285,373,871.75/510,843.69 - Step 6: Final answer
x = 738,553.46
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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.