Finding the Fourth Proportional to 939,646.26, 1,296,721.35 and 509,930.10
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Solution
The fourth proportional to 939,646.26, 1,296,721.35 and 509,930.10 is: 703,708.70
Step by Step Solution
- Step 1: Write the proportion equation
939,646.26 : 1,296,721.35 = 509,930.10 : x - Step 2: Convert to fraction form
939,646.26/1,296,721.35 = 509,930.10/x - Step 3: Cross multiply
939,646.26x = 1,296,721.35 × 509,930.10 - Step 4: Simplify right side
939,646.26x = 661,237,247,677.64 - Step 5: Solve for x
x = 661,237,247,677.64/939,646.26 - Step 6: Final answer
x = 703,708.70
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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.