Finding the Fourth Proportional to 970,109.20, 1,455,163.80 and 305,261.20
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Solution
The fourth proportional to 970,109.20, 1,455,163.80 and 305,261.20 is: 457,891.80
Step by Step Solution
- Step 1: Write the proportion equation
970,109.20 : 1,455,163.80 = 305,261.20 : x - Step 2: Convert to fraction form
970,109.20/1,455,163.80 = 305,261.20/x - Step 3: Cross multiply
970,109.20x = 1,455,163.80 × 305,261.20 - Step 4: Simplify right side
970,109.20x = 444,205,047,784.56 - Step 5: Solve for x
x = 444,205,047,784.56/970,109.20 - Step 6: Final answer
x = 457,891.80
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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.