Finding the Fourth Proportional to 620,916.14, 931,371.78 and 171,636.14
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Solution
The fourth proportional to 620,916.14, 931,371.78 and 171,636.14 is: 257,453.54
Step by Step Solution
- Step 1: Write the proportion equation
620,916.14 : 931,371.78 = 171,636.14 : x - Step 2: Convert to fraction form
620,916.14/931,371.78 = 171,636.14/x - Step 3: Cross multiply
620,916.14x = 931,371.78 × 171,636.14 - Step 4: Simplify right side
620,916.14x = 159,857,057,224.13 - Step 5: Solve for x
x = 159,857,057,224.13/620,916.14 - Step 6: Final answer
x = 257,453.54
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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.