Finding the Fourth Proportional to 757,243.28, 1,135,438.68 and 251,533.52
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Solution
The fourth proportional to 757,243.28, 1,135,438.68 and 251,533.52 is: 377,158.70
Step by Step Solution
- Step 1: Write the proportion equation
757,243.28 : 1,135,438.68 = 251,533.52 : x - Step 2: Convert to fraction form
757,243.28/1,135,438.68 = 251,533.52/x - Step 3: Cross multiply
757,243.28x = 1,135,438.68 × 251,533.52 - Step 4: Simplify right side
757,243.28x = 285,600,887,924.55 - Step 5: Solve for x
x = 285,600,887,924.55/757,243.28 - Step 6: Final answer
x = 377,158.70
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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.