Finding the Fourth Proportional to 660,245.40, 989,201.70 and 541,272.60
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Solution
The fourth proportional to 660,245.40, 989,201.70 and 541,272.60 is: 810,952.68
Step by Step Solution
- Step 1: Write the proportion equation
660,245.40 : 989,201.70 = 541,272.60 : x - Step 2: Convert to fraction form
660,245.40/989,201.70 = 541,272.60/x - Step 3: Cross multiply
660,245.40x = 989,201.70 × 541,272.60 - Step 4: Simplify right side
660,245.40x = 535,427,776,083.42 - Step 5: Solve for x
x = 535,427,776,083.42/660,245.40 - Step 6: Final answer
x = 810,952.68
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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.