Finding the Fourth Proportional to 689,672.70, 1,033,893.45 and 268,850.70
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Solution
The fourth proportional to 689,672.70, 1,033,893.45 and 268,850.70 is: 403,036.07
Step by Step Solution
- Step 1: Write the proportion equation
689,672.70 : 1,033,893.45 = 268,850.70 : x - Step 2: Convert to fraction form
689,672.70/1,033,893.45 = 268,850.70/x - Step 3: Cross multiply
689,672.70x = 1,033,893.45 × 268,850.70 - Step 4: Simplify right side
689,672.70x = 277,962,977,757.92 - Step 5: Solve for x
x = 277,962,977,757.92/689,672.70 - Step 6: Final answer
x = 403,036.07
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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.