Finding the Fourth Proportional to 411,757.97, 617,686.79 and 145,463.99
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Solution
The fourth proportional to 411,757.97, 617,686.79 and 145,463.99 is: 218,213.58
Step by Step Solution
- Step 1: Write the proportion equation
411,757.97 : 617,686.79 = 145,463.99 : x - Step 2: Convert to fraction form
411,757.97/617,686.79 = 145,463.99/x - Step 3: Cross multiply
411,757.97x = 617,686.79 × 145,463.99 - Step 4: Simplify right side
411,757.97x = 89,851,181,227.94 - Step 5: Solve for x
x = 89,851,181,227.94/411,757.97 - Step 6: Final answer
x = 218,213.58
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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.