Finding the Fourth Proportional to 816,857.71, 1,225,125.05 and 776,350.68
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Solution
The fourth proportional to 816,857.71, 1,225,125.05 and 776,350.68 is: 1,164,372.50
Step by Step Solution
- Step 1: Write the proportion equation
816,857.71 : 1,225,125.05 = 776,350.68 : x - Step 2: Convert to fraction form
816,857.71/1,225,125.05 = 776,350.68/x - Step 3: Cross multiply
816,857.71x = 1,225,125.05 × 776,350.68 - Step 4: Simplify right side
816,857.71x = 951,126,661,543.53 - Step 5: Solve for x
x = 951,126,661,543.53/816,857.71 - Step 6: Final answer
x = 1,164,372.50
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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.