Finding the Fourth Proportional to 811,684.23, 1,120,157.25 and 449,102.19
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Solution
The fourth proportional to 811,684.23, 1,120,157.25 and 449,102.19 is: 619,779.28
Step by Step Solution
- Step 1: Write the proportion equation
811,684.23 : 1,120,157.25 = 449,102.19 : x - Step 2: Convert to fraction form
811,684.23/1,120,157.25 = 449,102.19/x - Step 3: Cross multiply
811,684.23x = 1,120,157.25 × 449,102.19 - Step 4: Simplify right side
811,684.23x = 503,065,066,273.08 - Step 5: Solve for x
x = 503,065,066,273.08/811,684.23 - Step 6: Final answer
x = 619,779.28
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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.