Finding the Fourth Proportional to 509,743.40, 764,615.10 and 341,781.80
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Solution
The fourth proportional to 509,743.40, 764,615.10 and 341,781.80 is: 512,672.70
Step by Step Solution
- Step 1: Write the proportion equation
509,743.40 : 764,615.10 = 341,781.80 : x - Step 2: Convert to fraction form
509,743.40/764,615.10 = 341,781.80/x - Step 3: Cross multiply
509,743.40x = 764,615.10 × 341,781.80 - Step 4: Simplify right side
509,743.40x = 261,331,525,185.18 - Step 5: Solve for x
x = 261,331,525,185.18/509,743.40 - Step 6: Final answer
x = 512,672.70
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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.