Finding the Fourth Proportional to 780,282.80, 1,170,424.20 and 247,857.65
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Solution
The fourth proportional to 780,282.80, 1,170,424.20 and 247,857.65 is: 371,786.48
Step by Step Solution
- Step 1: Write the proportion equation
780,282.80 : 1,170,424.20 = 247,857.65 : x - Step 2: Convert to fraction form
780,282.80/1,170,424.20 = 247,857.65/x - Step 3: Cross multiply
780,282.80x = 1,170,424.20 × 247,857.65 - Step 4: Simplify right side
780,282.80x = 290,098,591,715.13 - Step 5: Solve for x
x = 290,098,591,715.13/780,282.80 - Step 6: Final answer
x = 371,786.48
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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.