Finding the Fourth Proportional to 939,806.09, 1,296,897.71 and 510,076.99
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Solution
The fourth proportional to 939,806.09, 1,296,897.71 and 510,076.99 is: 703,887.41
Step by Step Solution
- Step 1: Write the proportion equation
939,806.09 : 1,296,897.71 = 510,076.99 : x - Step 2: Convert to fraction form
939,806.09/1,296,897.71 = 510,076.99/x - Step 3: Cross multiply
939,806.09x = 1,296,897.71 × 510,076.99 - Step 4: Simplify right side
939,806.09x = 661,517,675,737.26 - Step 5: Solve for x
x = 661,517,675,737.26/939,806.09 - Step 6: Final answer
x = 703,887.41
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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.