Finding the Fourth Proportional to 410,324.70, 615,544.65 and 129,812.70
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Solution
The fourth proportional to 410,324.70, 615,544.65 and 129,812.70 is: 194,737.27
Step by Step Solution
- Step 1: Write the proportion equation
410,324.70 : 615,544.65 = 129,812.70 : x - Step 2: Convert to fraction form
410,324.70/615,544.65 = 129,812.70/x - Step 3: Cross multiply
410,324.70x = 615,544.65 × 129,812.70 - Step 4: Simplify right side
410,324.70x = 79,905,512,987.06 - Step 5: Solve for x
x = 79,905,512,987.06/410,324.70 - Step 6: Final answer
x = 194,737.27
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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.