Finding the Fourth Proportional to 959,362.57, 1,438,561.90 and 319,440.09
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Solution
The fourth proportional to 959,362.57, 1,438,561.90 and 319,440.09 is: 478,999.66
Step by Step Solution
- Step 1: Write the proportion equation
959,362.57 : 1,438,561.90 = 319,440.09 : x - Step 2: Convert to fraction form
959,362.57/1,438,561.90 = 319,440.09/x - Step 3: Cross multiply
959,362.57x = 1,438,561.90 × 319,440.09 - Step 4: Simplify right side
959,362.57x = 459,534,342,806.57 - Step 5: Solve for x
x = 459,534,342,806.57/959,362.57 - Step 6: Final answer
x = 478,999.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.