Finding the Fourth Proportional to 3,305,936.74, 4,956,978.36 and 1,281,815.98
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Solution
The fourth proportional to 3,305,936.74, 4,956,978.36 and 1,281,815.98 is: 1,921,976.91
Step by Step Solution
- Step 1: Write the proportion equation
3,305,936.74 : 4,956,978.36 = 1,281,815.98 : x - Step 2: Convert to fraction form
3,305,936.74/4,956,978.36 = 1,281,815.98/x - Step 3: Cross multiply
3,305,936.74x = 4,956,978.36 × 1,281,815.98 - Step 4: Simplify right side
3,305,936.74x = 6,353,934,074,362.19 - Step 5: Solve for x
x = 6,353,934,074,362.19/3,305,936.74 - Step 6: Final answer
x = 1,921,976.91
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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.