Finding the Fourth Proportional to 939,648.95, 1,296,716.41 and 509,929.10
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Solution
The fourth proportional to 939,648.95, 1,296,716.41 and 509,929.10 is: 703,702.62
Step by Step Solution
- Step 1: Write the proportion equation
939,648.95 : 1,296,716.41 = 509,929.10 : x - Step 2: Convert to fraction form
939,648.95/1,296,716.41 = 509,929.10/x - Step 3: Cross multiply
939,648.95x = 1,296,716.41 × 509,929.10 - Step 4: Simplify right side
939,648.95x = 661,233,431,906.53 - Step 5: Solve for x
x = 661,233,431,906.53/939,648.95 - Step 6: Final answer
x = 703,702.62
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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.