Finding the Fourth Proportional to 1,405,831.20, 1,940,056.29 and 761,251.44
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Solution
The fourth proportional to 1,405,831.20, 1,940,056.29 and 761,251.44 is: 1,050,531.99
Step by Step Solution
- Step 1: Write the proportion equation
1,405,831.20 : 1,940,056.29 = 761,251.44 : x - Step 2: Convert to fraction form
1,405,831.20/1,940,056.29 = 761,251.44/x - Step 3: Cross multiply
1,405,831.20x = 1,940,056.29 × 761,251.44 - Step 4: Simplify right side
1,405,831.20x = 1,476,870,644,443.56 - Step 5: Solve for x
x = 1,476,870,644,443.56/1,405,831.20 - Step 6: Final answer
x = 1,050,531.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.