Finding the Fourth Proportional to 747,581.70, 1,121,544.28 and 215,107.14
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Solution
The fourth proportional to 747,581.70, 1,121,544.28 and 215,107.14 is: 322,710.12
Step by Step Solution
- Step 1: Write the proportion equation
747,581.70 : 1,121,544.28 = 215,107.14 : x - Step 2: Convert to fraction form
747,581.70/1,121,544.28 = 215,107.14/x - Step 3: Cross multiply
747,581.70x = 1,121,544.28 × 215,107.14 - Step 4: Simplify right side
747,581.70x = 241,252,182,454.16 - Step 5: Solve for x
x = 241,252,182,454.16/747,581.70 - Step 6: Final answer
x = 322,710.12
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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.