Finding the Fourth Proportional to 780,177.68, 1,170,490.68 and 324,680.25
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Solution
The fourth proportional to 780,177.68, 1,170,490.68 and 324,680.25 is: 487,113.66
Step by Step Solution
- Step 1: Write the proportion equation
780,177.68 : 1,170,490.68 = 324,680.25 : x - Step 2: Convert to fraction form
780,177.68/1,170,490.68 = 324,680.25/x - Step 3: Cross multiply
780,177.68x = 1,170,490.68 × 324,680.25 - Step 4: Simplify right side
780,177.68x = 380,035,206,605.07 - Step 5: Solve for x
x = 380,035,206,605.07/780,177.68 - Step 6: Final answer
x = 487,113.66
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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.