Finding the Fourth Proportional to 862,213.92, 1,189,876.66 and 480,247.08
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Solution
The fourth proportional to 862,213.92, 1,189,876.66 and 480,247.08 is: 662,752.92
Step by Step Solution
- Step 1: Write the proportion equation
862,213.92 : 1,189,876.66 = 480,247.08 : x - Step 2: Convert to fraction form
862,213.92/1,189,876.66 = 480,247.08/x - Step 3: Cross multiply
862,213.92x = 1,189,876.66 × 480,247.08 - Step 4: Simplify right side
862,213.92x = 571,434,791,525.15 - Step 5: Solve for x
x = 571,434,791,525.15/862,213.92 - Step 6: Final answer
x = 662,752.92
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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.