Finding the Fourth Proportional to 1,014,446.12, 1,399,977.84 and 561,737.12
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Solution
The fourth proportional to 1,014,446.12, 1,399,977.84 and 561,737.12 is: 775,220.59
Step by Step Solution
- Step 1: Write the proportion equation
1,014,446.12 : 1,399,977.84 = 561,737.12 : x - Step 2: Convert to fraction form
1,014,446.12/1,399,977.84 = 561,737.12/x - Step 3: Cross multiply
1,014,446.12x = 1,399,977.84 × 561,737.12 - Step 4: Simplify right side
1,014,446.12x = 786,419,519,905.42 - Step 5: Solve for x
x = 786,419,519,905.42/1,014,446.12 - Step 6: Final answer
x = 775,220.59
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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.