Finding the Fourth Proportional to 659,906.18, 989,847.12 and 210,623.48
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Solution
The fourth proportional to 659,906.18, 989,847.12 and 210,623.48 is: 315,931.34
Step by Step Solution
- Step 1: Write the proportion equation
659,906.18 : 989,847.12 = 210,623.48 : x - Step 2: Convert to fraction form
659,906.18/989,847.12 = 210,623.48/x - Step 3: Cross multiply
659,906.18x = 989,847.12 × 210,623.48 - Step 4: Simplify right side
659,906.18x = 208,485,045,082.38 - Step 5: Solve for x
x = 208,485,045,082.38/659,906.18 - Step 6: Final answer
x = 315,931.34
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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.