Finding the Fourth Proportional to 719,743.76, 993,246.12 and 397,454.48
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Solution
The fourth proportional to 719,743.76, 993,246.12 and 397,454.48 is: 548,487.03
Step by Step Solution
- Step 1: Write the proportion equation
719,743.76 : 993,246.12 = 397,454.48 : x - Step 2: Convert to fraction form
719,743.76/993,246.12 = 397,454.48/x - Step 3: Cross multiply
719,743.76x = 993,246.12 × 397,454.48 - Step 4: Simplify right side
719,743.76x = 394,770,120,136.62 - Step 5: Solve for x
x = 394,770,120,136.62/719,743.76 - Step 6: Final answer
x = 548,487.03
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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.