Finding the Fourth Proportional to 548,342.19, 756,714.69 and 306,624.85
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Solution
The fourth proportional to 548,342.19, 756,714.69 and 306,624.85 is: 423,143.67
Step by Step Solution
- Step 1: Write the proportion equation
548,342.19 : 756,714.69 = 306,624.85 : x - Step 2: Convert to fraction form
548,342.19/756,714.69 = 306,624.85/x - Step 3: Cross multiply
548,342.19x = 756,714.69 × 306,624.85 - Step 4: Simplify right side
548,342.19x = 232,027,528,314.05 - Step 5: Solve for x
x = 232,027,528,314.05/548,342.19 - Step 6: Final answer
x = 423,143.67
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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.