Finding the Fourth Proportional to 4,616,861.90, 6,925,640.94 and 1,378,143.79
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Solution
The fourth proportional to 4,616,861.90, 6,925,640.94 and 1,378,143.79 is: 2,067,319.59
Step by Step Solution
- Step 1: Write the proportion equation
4,616,861.90 : 6,925,640.94 = 1,378,143.79 : x - Step 2: Convert to fraction form
4,616,861.90/6,925,640.94 = 1,378,143.79/x - Step 3: Cross multiply
4,616,861.90x = 6,925,640.94 × 1,378,143.79 - Step 4: Simplify right side
4,616,861.90x = 9,544,529,035,916.66 - Step 5: Solve for x
x = 9,544,529,035,916.66/4,616,861.90 - Step 6: Final answer
x = 2,067,319.59
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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.