Finding the Fourth Proportional to 625,129.92, 862,683.36 and 338,649.76
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Solution
The fourth proportional to 625,129.92, 862,683.36 and 338,649.76 is: 467,338.87
Step by Step Solution
- Step 1: Write the proportion equation
625,129.92 : 862,683.36 = 338,649.76 : x - Step 2: Convert to fraction form
625,129.92/862,683.36 = 338,649.76/x - Step 3: Cross multiply
625,129.92x = 862,683.36 × 338,649.76 - Step 4: Simplify right side
625,129.92x = 292,147,512,819.99 - Step 5: Solve for x
x = 292,147,512,819.99/625,129.92 - Step 6: Final answer
x = 467,338.87
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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.