Finding the Fourth Proportional to 868,087.50, 1,197,961.36 and 486,123.09
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Solution
The fourth proportional to 868,087.50, 1,197,961.36 and 486,123.09 is: 670,850.20
Step by Step Solution
- Step 1: Write the proportion equation
868,087.50 : 1,197,961.36 = 486,123.09 : x - Step 2: Convert to fraction form
868,087.50/1,197,961.36 = 486,123.09/x - Step 3: Cross multiply
868,087.50x = 1,197,961.36 × 486,123.09 - Step 4: Simplify right side
868,087.50x = 582,356,676,808.50 - Step 5: Solve for x
x = 582,356,676,808.50/868,087.50 - Step 6: Final answer
x = 670,850.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.