Finding the Fourth Proportional to 1,126,647.34, 1,690,236.90 and 368,485.94
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Solution
The fourth proportional to 1,126,647.34, 1,690,236.90 and 368,485.94 is: 552,815.87
Step by Step Solution
- Step 1: Write the proportion equation
1,126,647.34 : 1,690,236.90 = 368,485.94 : x - Step 2: Convert to fraction form
1,126,647.34/1,690,236.90 = 368,485.94/x - Step 3: Cross multiply
1,126,647.34x = 1,690,236.90 × 368,485.94 - Step 4: Simplify right side
1,126,647.34x = 622,828,532,919.19 - Step 5: Solve for x
x = 622,828,532,919.19/1,126,647.34 - Step 6: Final answer
x = 552,815.87
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.