Finding the Fourth Proportional to 939,663.88, 1,296,737.07 and 509,944.12
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Solution
The fourth proportional to 939,663.88, 1,296,737.07 and 509,944.12 is: 703,723.38
Step by Step Solution
- Step 1: Write the proportion equation
939,663.88 : 1,296,737.07 = 509,944.12 : x - Step 2: Convert to fraction form
939,663.88/1,296,737.07 = 509,944.12/x - Step 3: Cross multiply
939,663.88x = 1,296,737.07 × 509,944.12 - Step 4: Simplify right side
939,663.88x = 661,263,444,032.53 - Step 5: Solve for x
x = 661,263,444,032.53/939,663.88 - Step 6: Final answer
x = 703,723.38
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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.