Finding the Fourth Proportional to 778,232.97, 1,073,960.87 and 420,536.97
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Solution
The fourth proportional to 778,232.97, 1,073,960.87 and 420,536.97 is: 580,340.68
Step by Step Solution
- Step 1: Write the proportion equation
778,232.97 : 1,073,960.87 = 420,536.97 : x - Step 2: Convert to fraction form
778,232.97/1,073,960.87 = 420,536.97/x - Step 3: Cross multiply
778,232.97x = 1,073,960.87 × 420,536.97 - Step 4: Simplify right side
778,232.97x = 451,640,248,065.68 - Step 5: Solve for x
x = 451,640,248,065.68/778,232.97 - Step 6: Final answer
x = 580,340.68
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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.