Finding the Fourth Proportional to 1,080,939.23, 1,621,475.70 and 361,345.68
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Solution
The fourth proportional to 1,080,939.23, 1,621,475.70 and 361,345.68 is: 542,040.87
Step by Step Solution
- Step 1: Write the proportion equation
1,080,939.23 : 1,621,475.70 = 361,345.68 : x - Step 2: Convert to fraction form
1,080,939.23/1,621,475.70 = 361,345.68/x - Step 3: Cross multiply
1,080,939.23x = 1,621,475.70 × 361,345.68 - Step 4: Simplify right side
1,080,939.23x = 585,913,240,097.50 - Step 5: Solve for x
x = 585,913,240,097.50/1,080,939.23 - Step 6: Final answer
x = 542,040.87
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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.