Finding the Fourth Proportional to 515,585.38, 711,593.34 and 300,725.44
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Solution
The fourth proportional to 515,585.38, 711,593.34 and 300,725.44 is: 415,050.99
Step by Step Solution
- Step 1: Write the proportion equation
515,585.38 : 711,593.34 = 300,725.44 : x - Step 2: Convert to fraction form
515,585.38/711,593.34 = 300,725.44/x - Step 3: Cross multiply
515,585.38x = 711,593.34 × 300,725.44 - Step 4: Simplify right side
515,585.38x = 213,994,220,272.57 - Step 5: Solve for x
x = 213,994,220,272.57/515,585.38 - Step 6: Final answer
x = 415,050.99
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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.