Finding the Fourth Proportional to 4,128,820.65, 6,193,231.79 and 1,289,176.11
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Solution
The fourth proportional to 4,128,820.65, 6,193,231.79 and 1,289,176.11 is: 1,933,764.42
Step by Step Solution
- Step 1: Write the proportion equation
4,128,820.65 : 6,193,231.79 = 1,289,176.11 : x - Step 2: Convert to fraction form
4,128,820.65/6,193,231.79 = 1,289,176.11/x - Step 3: Cross multiply
4,128,820.65x = 6,193,231.79 × 1,289,176.11 - Step 4: Simplify right side
4,128,820.65x = 7,984,166,460,914.66 - Step 5: Solve for x
x = 7,984,166,460,914.66/4,128,820.65 - Step 6: Final answer
x = 1,933,764.42
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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.