Finding the Fourth Proportional to 538,850.40, 807,400.80 and 338,812.80
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Solution
The fourth proportional to 538,850.40, 807,400.80 and 338,812.80 is: 507,669.15
Step by Step Solution
- Step 1: Write the proportion equation
538,850.40 : 807,400.80 = 338,812.80 : x - Step 2: Convert to fraction form
538,850.40/807,400.80 = 338,812.80/x - Step 3: Cross multiply
538,850.40x = 807,400.80 × 338,812.80 - Step 4: Simplify right side
538,850.40x = 273,557,725,770.24 - Step 5: Solve for x
x = 273,557,725,770.24/538,850.40 - Step 6: Final answer
x = 507,669.15
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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.