Finding the Fourth Proportional to 902,502.14, 1,245,487.48 and 515,380.74
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Solution
The fourth proportional to 902,502.14, 1,245,487.48 and 515,380.74 is: 711,245.14
Step by Step Solution
- Step 1: Write the proportion equation
902,502.14 : 1,245,487.48 = 515,380.74 : x - Step 2: Convert to fraction form
902,502.14/1,245,487.48 = 515,380.74/x - Step 3: Cross multiply
902,502.14x = 1,245,487.48 × 515,380.74 - Step 4: Simplify right side
902,502.14x = 641,900,259,103.14 - Step 5: Solve for x
x = 641,900,259,103.14/902,502.14 - Step 6: Final answer
x = 711,245.14
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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.