Finding the Fourth Proportional to 880,385.28, 1,212,211.28 and 687,571.84
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Solution
The fourth proportional to 880,385.28, 1,212,211.28 and 687,571.84 is: 946,724.53
Step by Step Solution
- Step 1: Write the proportion equation
880,385.28 : 1,212,211.28 = 687,571.84 : x - Step 2: Convert to fraction form
880,385.28/1,212,211.28 = 687,571.84/x - Step 3: Cross multiply
880,385.28x = 1,212,211.28 × 687,571.84 - Step 4: Simplify right side
880,385.28x = 833,482,340,258.36 - Step 5: Solve for x
x = 833,482,340,258.36/880,385.28 - Step 6: Final answer
x = 946,724.53
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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.