Finding the Fourth Proportional to 620,461.78, 930,696.99 and 339,825.94
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Solution
The fourth proportional to 620,461.78, 930,696.99 and 339,825.94 is: 509,741.28
Step by Step Solution
- Step 1: Write the proportion equation
620,461.78 : 930,696.99 = 339,825.94 : x - Step 2: Convert to fraction form
620,461.78/930,696.99 = 339,825.94/x - Step 3: Cross multiply
620,461.78x = 930,696.99 × 339,825.94 - Step 4: Simplify right side
620,461.78x = 316,274,979,481.92 - Step 5: Solve for x
x = 316,274,979,481.92/620,461.78 - Step 6: Final answer
x = 509,741.28
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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.