Finding the Fourth Proportional to 411,529.10, 617,352.79 and 127,241.80
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Solution
The fourth proportional to 411,529.10, 617,352.79 and 127,241.80 is: 190,880.99
Step by Step Solution
- Step 1: Write the proportion equation
411,529.10 : 617,352.79 = 127,241.80 : x - Step 2: Convert to fraction form
411,529.10/617,352.79 = 127,241.80/x - Step 3: Cross multiply
411,529.10x = 617,352.79 × 127,241.80 - Step 4: Simplify right side
411,529.10x = 78,553,080,234.62 - Step 5: Solve for x
x = 78,553,080,234.62/411,529.10 - Step 6: Final answer
x = 190,880.99
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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.