Finding the Fourth Proportional to 420,634.62, 580,451.13 and 229,609.62
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Solution
The fourth proportional to 420,634.62, 580,451.13 and 229,609.62 is: 316,847.82
Step by Step Solution
- Step 1: Write the proportion equation
420,634.62 : 580,451.13 = 229,609.62 : x - Step 2: Convert to fraction form
420,634.62/580,451.13 = 229,609.62/x - Step 3: Cross multiply
420,634.62x = 580,451.13 × 229,609.62 - Step 4: Simplify right side
420,634.62x = 133,277,163,387.87 - Step 5: Solve for x
x = 133,277,163,387.87/420,634.62 - Step 6: Final answer
x = 316,847.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.