Finding the Fourth Proportional to 862,890.96, 1,294,453.08 and 810,402.96
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Solution
The fourth proportional to 862,890.96, 1,294,453.08 and 810,402.96 is: 1,215,713.99
Step by Step Solution
- Step 1: Write the proportion equation
862,890.96 : 1,294,453.08 = 810,402.96 : x - Step 2: Convert to fraction form
862,890.96/1,294,453.08 = 810,402.96/x - Step 3: Cross multiply
862,890.96x = 1,294,453.08 × 810,402.96 - Step 4: Simplify right side
862,890.96x = 1,049,028,607,613.12 - Step 5: Solve for x
x = 1,049,028,607,613.12/862,890.96 - Step 6: Final answer
x = 1,215,713.99
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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.