Finding the Fourth Proportional to 751,286.48, 1,126,942.08 and 211,555.74
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Solution
The fourth proportional to 751,286.48, 1,126,942.08 and 211,555.74 is: 317,337.09
Step by Step Solution
- Step 1: Write the proportion equation
751,286.48 : 1,126,942.08 = 211,555.74 : x - Step 2: Convert to fraction form
751,286.48/1,126,942.08 = 211,555.74/x - Step 3: Cross multiply
751,286.48x = 1,126,942.08 × 211,555.74 - Step 4: Simplify right side
751,286.48x = 238,411,064,613.76 - Step 5: Solve for x
x = 238,411,064,613.76/751,286.48 - Step 6: Final answer
x = 317,337.09
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1.5x scale
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.