Finding the Fourth Proportional to 638,347.97, 880,919.97 and 351,872.84
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Solution
The fourth proportional to 638,347.97, 880,919.97 and 351,872.84 is: 485,584.39
Step by Step Solution
- Step 1: Write the proportion equation
638,347.97 : 880,919.97 = 351,872.84 : x - Step 2: Convert to fraction form
638,347.97/880,919.97 = 351,872.84/x - Step 3: Cross multiply
638,347.97x = 880,919.97 × 351,872.84 - Step 4: Simplify right side
638,347.97x = 309,971,807,252.02 - Step 5: Solve for x
x = 309,971,807,252.02/638,347.97 - Step 6: Final answer
x = 485,584.39
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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.