Finding the Fourth Proportional to 939,578.10, 1,296,621.26 and 509,858.31
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Solution
The fourth proportional to 939,578.10, 1,296,621.26 and 509,858.31 is: 703,606.35
Step by Step Solution
- Step 1: Write the proportion equation
939,578.10 : 1,296,621.26 = 509,858.31 : x - Step 2: Convert to fraction form
939,578.10/1,296,621.26 = 509,858.31/x - Step 3: Cross multiply
939,578.10x = 1,296,621.26 × 509,858.31 - Step 4: Simplify right side
939,578.10x = 661,093,121,784.38 - Step 5: Solve for x
x = 661,093,121,784.38/939,578.10 - Step 6: Final answer
x = 703,606.35
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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.