Finding the Fourth Proportional to 623,716.79, 860,532.68 and 381,747.11
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Solution
The fourth proportional to 623,716.79, 860,532.68 and 381,747.11 is: 526,690.75
Step by Step Solution
- Step 1: Write the proportion equation
623,716.79 : 860,532.68 = 381,747.11 : x - Step 2: Convert to fraction form
623,716.79/860,532.68 = 381,747.11/x - Step 3: Cross multiply
623,716.79x = 860,532.68 × 381,747.11 - Step 4: Simplify right side
623,716.79x = 328,505,863,650.56 - Step 5: Solve for x
x = 328,505,863,650.56/623,716.79 - Step 6: Final answer
x = 526,690.75
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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.