Finding the Fourth Proportional to 436,091.70, 609,128.70 and 436,091.70
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Solution
The fourth proportional to 436,091.70, 609,128.70 and 436,091.70 is: 609,128.70
Step by Step Solution
- Step 1: Write the proportion equation
436,091.70 : 609,128.70 = 436,091.70 : x - Step 2: Convert to fraction form
436,091.70/609,128.70 = 436,091.70/x - Step 3: Cross multiply
436,091.70x = 609,128.70 × 436,091.70 - Step 4: Simplify right side
436,091.70x = 265,635,970,301.79 - Step 5: Solve for x
x = 265,635,970,301.79/436,091.70 - Step 6: Final answer
x = 609,128.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.