Finding the Fourth Proportional to 409,816.06, 614,833.53 and 129,338.62
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Solution
The fourth proportional to 409,816.06, 614,833.53 and 129,338.62 is: 194,042.47
Step by Step Solution
- Step 1: Write the proportion equation
409,816.06 : 614,833.53 = 129,338.62 : x - Step 2: Convert to fraction form
409,816.06/614,833.53 = 129,338.62/x - Step 3: Cross multiply
409,816.06x = 614,833.53 × 129,338.62 - Step 4: Simplify right side
409,816.06x = 79,521,720,299.93 - Step 5: Solve for x
x = 79,521,720,299.93/409,816.06 - Step 6: Final answer
x = 194,042.47
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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.