Finding the Fourth Proportional to 411,249.40, 617,795.70 and 394,455.80
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Solution
The fourth proportional to 411,249.40, 617,795.70 and 394,455.80 is: 592,567.67
Step by Step Solution
- Step 1: Write the proportion equation
411,249.40 : 617,795.70 = 394,455.80 : x - Step 2: Convert to fraction form
411,249.40/617,795.70 = 394,455.80/x - Step 3: Cross multiply
411,249.40x = 617,795.70 × 394,455.80 - Step 4: Simplify right side
411,249.40x = 243,693,097,080.06 - Step 5: Solve for x
x = 243,693,097,080.06/411,249.40 - Step 6: Final answer
x = 592,567.67
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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.