Finding the Fourth Proportional to 665,745.40, 998,618.10 and 266,447.80
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Solution
The fourth proportional to 665,745.40, 998,618.10 and 266,447.80 is: 399,671.70
Step by Step Solution
- Step 1: Write the proportion equation
665,745.40 : 998,618.10 = 266,447.80 : x - Step 2: Convert to fraction form
665,745.40/998,618.10 = 266,447.80/x - Step 3: Cross multiply
665,745.40x = 998,618.10 × 266,447.80 - Step 4: Simplify right side
665,745.40x = 266,079,595,785.18 - Step 5: Solve for x
x = 266,079,595,785.18/665,745.40 - Step 6: Final answer
x = 399,671.70
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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.