Finding the Fourth Proportional to 811,847.32, 1,120,351.48 and 449,296.18
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Solution
The fourth proportional to 811,847.32, 1,120,351.48 and 449,296.18 is: 620,029.93
Step by Step Solution
- Step 1: Write the proportion equation
811,847.32 : 1,120,351.48 = 449,296.18 : x - Step 2: Convert to fraction form
811,847.32/1,120,351.48 = 449,296.18/x - Step 3: Cross multiply
811,847.32x = 1,120,351.48 × 449,296.18 - Step 4: Simplify right side
811,847.32x = 503,369,632,373.11 - Step 5: Solve for x
x = 503,369,632,373.11/811,847.32 - Step 6: Final answer
x = 620,029.93
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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.