Finding the Fourth Proportional to 818,434.18, 1,129,495.94 and 496,157.86
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Solution
The fourth proportional to 818,434.18, 1,129,495.94 and 496,157.86 is: 684,732.26
Step by Step Solution
- Step 1: Write the proportion equation
818,434.18 : 1,129,495.94 = 496,157.86 : x - Step 2: Convert to fraction form
818,434.18/1,129,495.94 = 496,157.86/x - Step 3: Cross multiply
818,434.18x = 1,129,495.94 × 496,157.86 - Step 4: Simplify right side
818,434.18x = 560,408,288,469.09 - Step 5: Solve for x
x = 560,408,288,469.09/818,434.18 - Step 6: Final answer
x = 684,732.26
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.