Finding the Fourth Proportional to 420,631.62, 580,446.99 and 229,606.62
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Solution
The fourth proportional to 420,631.62, 580,446.99 and 229,606.62 is: 316,843.68
Step by Step Solution
- Step 1: Write the proportion equation
420,631.62 : 580,446.99 = 229,606.62 : x - Step 2: Convert to fraction form
420,631.62/580,446.99 = 229,606.62/x - Step 3: Cross multiply
420,631.62x = 580,446.99 × 229,606.62 - Step 4: Simplify right side
420,631.62x = 133,274,471,463.07 - Step 5: Solve for x
x = 133,274,471,463.07/420,631.62 - Step 6: Final answer
x = 316,843.68
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1.5x scale
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.