Finding the Fourth Proportional to 519,657.75, 717,129.86 and 281,193.75
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Solution
The fourth proportional to 519,657.75, 717,129.86 and 281,193.75 is: 388,048.54
Step by Step Solution
- Step 1: Write the proportion equation
519,657.75 : 717,129.86 = 281,193.75 : x - Step 2: Convert to fraction form
519,657.75/717,129.86 = 281,193.75/x - Step 3: Cross multiply
519,657.75x = 717,129.86 × 281,193.75 - Step 4: Simplify right side
519,657.75x = 201,652,433,164.41 - Step 5: Solve for x
x = 201,652,433,164.41/519,657.75 - Step 6: Final answer
x = 388,048.54
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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.