Finding the Fourth Proportional to 729,425.46, 1,006,608.29 and 407,135.49
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Solution
The fourth proportional to 729,425.46, 1,006,608.29 and 407,135.49 is: 561,847.62
Step by Step Solution
- Step 1: Write the proportion equation
729,425.46 : 1,006,608.29 = 407,135.49 : x - Step 2: Convert to fraction form
729,425.46/1,006,608.29 = 407,135.49/x - Step 3: Cross multiply
729,425.46x = 1,006,608.29 × 407,135.49 - Step 4: Simplify right side
729,425.46x = 409,825,959,387.21 - Step 5: Solve for x
x = 409,825,959,387.21/729,425.46 - Step 6: Final answer
x = 561,847.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.