Finding the Fourth Proportional to 434,584.20, 651,657.60 and 257,145.60
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Solution
The fourth proportional to 434,584.20, 651,657.60 and 257,145.60 is: 385,588.99
Step by Step Solution
- Step 1: Write the proportion equation
434,584.20 : 651,657.60 = 257,145.60 : x - Step 2: Convert to fraction form
434,584.20/651,657.60 = 257,145.60/x - Step 3: Cross multiply
434,584.20x = 651,657.60 × 257,145.60 - Step 4: Simplify right side
434,584.20x = 167,570,884,546.56 - Step 5: Solve for x
x = 167,570,884,546.56/434,584.20 - Step 6: Final answer
x = 385,588.99
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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.