Finding the Fourth Proportional to 664,482.20, 916,666.62 and 482,912.60
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Solution
The fourth proportional to 664,482.20, 916,666.62 and 482,912.60 is: 666,187.69
Step by Step Solution
- Step 1: Write the proportion equation
664,482.20 : 916,666.62 = 482,912.60 : x - Step 2: Convert to fraction form
664,482.20/916,666.62 = 482,912.60/x - Step 3: Cross multiply
664,482.20x = 916,666.62 × 482,912.60 - Step 4: Simplify right side
664,482.20x = 442,669,860,797.41 - Step 5: Solve for x
x = 442,669,860,797.41/664,482.20 - Step 6: Final answer
x = 666,187.69
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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.