Finding the Fourth Proportional to 612,787.94, 845,647.32 and 344,515.94
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Solution
The fourth proportional to 612,787.94, 845,647.32 and 344,515.94 is: 475,431.98
Step by Step Solution
- Step 1: Write the proportion equation
612,787.94 : 845,647.32 = 344,515.94 : x - Step 2: Convert to fraction form
612,787.94/845,647.32 = 344,515.94/x - Step 3: Cross multiply
612,787.94x = 845,647.32 × 344,515.94 - Step 4: Simplify right side
612,787.94x = 291,338,981,358.28 - Step 5: Solve for x
x = 291,338,981,358.28/612,787.94 - Step 6: Final answer
x = 475,431.98
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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.