Finding the Fourth Proportional to 512,782.47, 769,246.61 and 157,826.07
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Solution
The fourth proportional to 512,782.47, 769,246.61 and 157,826.07 is: 236,761.54
Step by Step Solution
- Step 1: Write the proportion equation
512,782.47 : 769,246.61 = 157,826.07 : x - Step 2: Convert to fraction form
512,782.47/769,246.61 = 157,826.07/x - Step 3: Cross multiply
512,782.47x = 769,246.61 × 157,826.07 - Step 4: Simplify right side
512,782.47x = 121,407,168,527.99 - Step 5: Solve for x
x = 121,407,168,527.99/512,782.47 - Step 6: Final answer
x = 236,761.54
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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.