Finding the Fourth Proportional to 411,351.40, 617,027.10 and 374,609.80
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Solution
The fourth proportional to 411,351.40, 617,027.10 and 374,609.80 is: 561,914.70
Step by Step Solution
- Step 1: Write the proportion equation
411,351.40 : 617,027.10 = 374,609.80 : x - Step 2: Convert to fraction form
411,351.40/617,027.10 = 374,609.80/x - Step 3: Cross multiply
411,351.40x = 617,027.10 × 374,609.80 - Step 4: Simplify right side
411,351.40x = 231,144,398,525.58 - Step 5: Solve for x
x = 231,144,398,525.58/411,351.40 - Step 6: Final answer
x = 561,914.70
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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.