Finding the Fourth Proportional to 3,105,311.72, 4,285,283.96 and 1,728,652.94
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Solution
The fourth proportional to 3,105,311.72, 4,285,283.96 and 1,728,652.94 is: 2,385,515.32
Step by Step Solution
- Step 1: Write the proportion equation
3,105,311.72 : 4,285,283.96 = 1,728,652.94 : x - Step 2: Convert to fraction form
3,105,311.72/4,285,283.96 = 1,728,652.94/x - Step 3: Cross multiply
3,105,311.72x = 4,285,283.96 × 1,728,652.94 - Step 4: Simplify right side
3,105,311.72x = 7,407,768,699,084.06 - Step 5: Solve for x
x = 7,407,768,699,084.06/3,105,311.72 - Step 6: Final answer
x = 2,385,515.32
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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.