Finding the Fourth Proportional to 411,442.20, 617,163.30 and 405,537.30
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Solution
The fourth proportional to 411,442.20, 617,163.30 and 405,537.30 is: 608,305.95
Step by Step Solution
- Step 1: Write the proportion equation
411,442.20 : 617,163.30 = 405,537.30 : x - Step 2: Convert to fraction form
411,442.20/617,163.30 = 405,537.30/x - Step 3: Cross multiply
411,442.20x = 617,163.30 × 405,537.30 - Step 4: Simplify right side
411,442.20x = 250,282,738,341.09 - Step 5: Solve for x
x = 250,282,738,341.09/411,442.20 - Step 6: Final answer
x = 608,305.95
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1.5x scale
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.