Finding the Fourth Proportional to 512,412.06, 768,618.09 and 246,006.30
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Solution
The fourth proportional to 512,412.06, 768,618.09 and 246,006.30 is: 369,009.45
Step by Step Solution
- Step 1: Write the proportion equation
512,412.06 : 768,618.09 = 246,006.30 : x - Step 2: Convert to fraction form
512,412.06/768,618.09 = 246,006.30/x - Step 3: Cross multiply
512,412.06x = 768,618.09 × 246,006.30 - Step 4: Simplify right side
512,412.06x = 189,084,892,433.97 - Step 5: Solve for x
x = 189,084,892,433.97/512,412.06 - Step 6: Final answer
x = 369,009.45
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Similar ratio
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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.