Finding the Fourth Proportional to 657,119.20, 985,132.05 and 278,330.80
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Solution
The fourth proportional to 657,119.20, 985,132.05 and 278,330.80 is: 417,264.62
Step by Step Solution
- Step 1: Write the proportion equation
657,119.20 : 985,132.05 = 278,330.80 : x - Step 2: Convert to fraction form
657,119.20/985,132.05 = 278,330.80/x - Step 3: Cross multiply
657,119.20x = 985,132.05 × 278,330.80 - Step 4: Simplify right side
657,119.20x = 274,192,591,582.14 - Step 5: Solve for x
x = 274,192,591,582.14/657,119.20 - Step 6: Final answer
x = 417,264.62
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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.