Finding the Fourth Proportional to 527,821.96, 791,721.87 and 128,464.96
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Solution
The fourth proportional to 527,821.96, 791,721.87 and 128,464.96 is: 192,694.74
Step by Step Solution
- Step 1: Write the proportion equation
527,821.96 : 791,721.87 = 128,464.96 : x - Step 2: Convert to fraction form
527,821.96/791,721.87 = 128,464.96/x - Step 3: Cross multiply
527,821.96x = 791,721.87 × 128,464.96 - Step 4: Simplify right side
527,821.96x = 101,708,515,899.63 - Step 5: Solve for x
x = 101,708,515,899.63/527,821.96 - Step 6: Final answer
x = 192,694.74
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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.