Finding the Fourth Proportional to 816,421.96, 1,225,190.24 and 283,937.68
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Solution
The fourth proportional to 816,421.96, 1,225,190.24 and 283,937.68 is: 426,100.34
Step by Step Solution
- Step 1: Write the proportion equation
816,421.96 : 1,225,190.24 = 283,937.68 : x - Step 2: Convert to fraction form
816,421.96/1,225,190.24 = 283,937.68/x - Step 3: Cross multiply
816,421.96x = 1,225,190.24 × 283,937.68 - Step 4: Simplify right side
816,421.96x = 347,877,674,304.24 - Step 5: Solve for x
x = 347,877,674,304.24/816,421.96 - Step 6: Final answer
x = 426,100.34
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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.