Finding the Fourth Proportional to 880,395.28, 1,212,225.08 and 687,581.84
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Solution
The fourth proportional to 880,395.28, 1,212,225.08 and 687,581.84 is: 946,738.32
Step by Step Solution
- Step 1: Write the proportion equation
880,395.28 : 1,212,225.08 = 687,581.84 : x - Step 2: Convert to fraction form
880,395.28/1,212,225.08 = 687,581.84/x - Step 3: Cross multiply
880,395.28x = 1,212,225.08 × 687,581.84 - Step 4: Simplify right side
880,395.28x = 833,503,951,000.55 - Step 5: Solve for x
x = 833,503,951,000.55/880,395.28 - Step 6: Final answer
x = 946,738.32
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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.