Finding the Fourth Proportional to 719,976.44, 1,080,139.62 and 221,340.44
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Solution
The fourth proportional to 719,976.44, 1,080,139.62 and 221,340.44 is: 332,064.45
Step by Step Solution
- Step 1: Write the proportion equation
719,976.44 : 1,080,139.62 = 221,340.44 : x - Step 2: Convert to fraction form
719,976.44/1,080,139.62 = 221,340.44/x - Step 3: Cross multiply
719,976.44x = 1,080,139.62 × 221,340.44 - Step 4: Simplify right side
719,976.44x = 239,078,578,752.23 - Step 5: Solve for x
x = 239,078,578,752.23/719,976.44 - Step 6: Final answer
x = 332,064.45
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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.