Finding the Fourth Proportional to 698,756.84, 964,261.94 and 392,846.06
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Solution
The fourth proportional to 698,756.84, 964,261.94 and 392,846.06 is: 542,114.92
Step by Step Solution
- Step 1: Write the proportion equation
698,756.84 : 964,261.94 = 392,846.06 : x - Step 2: Convert to fraction form
698,756.84/964,261.94 = 392,846.06/x - Step 3: Cross multiply
698,756.84x = 964,261.94 × 392,846.06 - Step 4: Simplify right side
698,756.84x = 378,806,504,383.38 - Step 5: Solve for x
x = 378,806,504,383.38/698,756.84 - Step 6: Final answer
x = 542,114.92
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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.