Finding the Fourth Proportional to 395,226.46, 592,934.01 and 128,987.47
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Solution
The fourth proportional to 395,226.46, 592,934.01 and 128,987.47 is: 193,511.99
Step by Step Solution
- Step 1: Write the proportion equation
395,226.46 : 592,934.01 = 128,987.47 : x - Step 2: Convert to fraction form
395,226.46/592,934.01 = 128,987.47/x - Step 3: Cross multiply
395,226.46x = 592,934.01 × 128,987.47 - Step 4: Simplify right side
395,226.46x = 76,481,057,826.85 - Step 5: Solve for x
x = 76,481,057,826.85/395,226.46 - Step 6: Final answer
x = 193,511.99
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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.