Finding the Fourth Proportional to 816,781.94, 1,225,173.99 and 217,712.42
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Solution
The fourth proportional to 816,781.94, 1,225,173.99 and 217,712.42 is: 326,568.92
Step by Step Solution
- Step 1: Write the proportion equation
816,781.94 : 1,225,173.99 = 217,712.42 : x - Step 2: Convert to fraction form
816,781.94/1,225,173.99 = 217,712.42/x - Step 3: Cross multiply
816,781.94x = 1,225,173.99 × 217,712.42 - Step 4: Simplify right side
816,781.94x = 266,735,594,283.96 - Step 5: Solve for x
x = 266,735,594,283.96/816,781.94 - Step 6: Final answer
x = 326,568.92
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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.