Finding the Fourth Proportional to 702,115.20, 968,916.87 and 379,825.23
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Solution
The fourth proportional to 702,115.20, 968,916.87 and 379,825.23 is: 524,157.68
Step by Step Solution
- Step 1: Write the proportion equation
702,115.20 : 968,916.87 = 379,825.23 : x - Step 2: Convert to fraction form
702,115.20/968,916.87 = 379,825.23/x - Step 3: Cross multiply
702,115.20x = 968,916.87 × 379,825.23 - Step 4: Simplify right side
702,115.20x = 368,019,072,998.63 - Step 5: Solve for x
x = 368,019,072,998.63/702,115.20 - Step 6: Final answer
x = 524,157.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.