Finding the Fourth Proportional to 861,636.53, 1,292,503.41 and 262,617.23
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Solution
The fourth proportional to 861,636.53, 1,292,503.41 and 262,617.23 is: 393,940.66
Step by Step Solution
- Step 1: Write the proportion equation
861,636.53 : 1,292,503.41 = 262,617.23 : x - Step 2: Convert to fraction form
861,636.53/1,292,503.41 = 262,617.23/x - Step 3: Cross multiply
861,636.53x = 1,292,503.41 × 262,617.23 - Step 4: Simplify right side
861,636.53x = 339,433,658,837.24 - Step 5: Solve for x
x = 339,433,658,837.24/861,636.53 - Step 6: Final answer
x = 393,940.66
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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.