Finding the Fourth Proportional to 490,015.95, 676,174.95 and 275,106.75
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Solution
The fourth proportional to 490,015.95, 676,174.95 and 275,106.75 is: 379,620.89
Step by Step Solution
- Step 1: Write the proportion equation
490,015.95 : 676,174.95 = 275,106.75 : x - Step 2: Convert to fraction form
490,015.95/676,174.95 = 275,106.75/x - Step 3: Cross multiply
490,015.95x = 676,174.95 × 275,106.75 - Step 4: Simplify right side
490,015.95x = 186,020,292,925.91 - Step 5: Solve for x
x = 186,020,292,925.91/490,015.95 - Step 6: Final answer
x = 379,620.89
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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.