Finding the Fourth Proportional to 810,195.99, 1,118,082.20 and 447,628.19
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Solution
The fourth proportional to 810,195.99, 1,118,082.20 and 447,628.19 is: 617,733.38
Step by Step Solution
- Step 1: Write the proportion equation
810,195.99 : 1,118,082.20 = 447,628.19 : x - Step 2: Convert to fraction form
810,195.99/1,118,082.20 = 447,628.19/x - Step 3: Cross multiply
810,195.99x = 1,118,082.20 × 447,628.19 - Step 4: Simplify right side
810,195.99x = 500,485,103,628.67 - Step 5: Solve for x
x = 500,485,103,628.67/810,195.99 - Step 6: Final answer
x = 617,733.38
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1.5x scale
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.