Finding the Fourth Proportional to 905,753.68, 1,358,826.56 and 274,715.12
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Solution
The fourth proportional to 905,753.68, 1,358,826.56 and 274,715.12 is: 412,132.14
Step by Step Solution
- Step 1: Write the proportion equation
905,753.68 : 1,358,826.56 = 274,715.12 : x - Step 2: Convert to fraction form
905,753.68/1,358,826.56 = 274,715.12/x - Step 3: Cross multiply
905,753.68x = 1,358,826.56 × 274,715.12 - Step 4: Simplify right side
905,753.68x = 373,290,201,489.59 - Step 5: Solve for x
x = 373,290,201,489.59/905,753.68 - Step 6: Final answer
x = 412,132.14
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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.