Finding the Fourth Proportional to 509,386.70, 702,912.49 and 294,540.68
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Solution
The fourth proportional to 509,386.70, 702,912.49 and 294,540.68 is: 406,442.34
Step by Step Solution
- Step 1: Write the proportion equation
509,386.70 : 702,912.49 = 294,540.68 : x - Step 2: Convert to fraction form
509,386.70/702,912.49 = 294,540.68/x - Step 3: Cross multiply
509,386.70x = 702,912.49 × 294,540.68 - Step 4: Simplify right side
509,386.70x = 207,036,322,785.09 - Step 5: Solve for x
x = 207,036,322,785.09/509,386.70 - Step 6: Final answer
x = 406,442.34
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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.