Finding the Fourth Proportional to 780,218.92, 1,170,368.70 and 247,781.80
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Solution
The fourth proportional to 780,218.92, 1,170,368.70 and 247,781.80 is: 371,685.50
Step by Step Solution
- Step 1: Write the proportion equation
780,218.92 : 1,170,368.70 = 247,781.80 : x - Step 2: Convert to fraction form
780,218.92/1,170,368.70 = 247,781.80/x - Step 3: Cross multiply
780,218.92x = 1,170,368.70 × 247,781.80 - Step 4: Simplify right side
780,218.92x = 289,996,063,149.66 - Step 5: Solve for x
x = 289,996,063,149.66/780,218.92 - Step 6: Final answer
x = 371,685.50
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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.