Finding the Fourth Proportional to 664,193.80, 996,420.30 and 285,113.80
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Solution
The fourth proportional to 664,193.80, 996,420.30 and 285,113.80 is: 427,726.33
Step by Step Solution
- Step 1: Write the proportion equation
664,193.80 : 996,420.30 = 285,113.80 : x - Step 2: Convert to fraction form
664,193.80/996,420.30 = 285,113.80/x - Step 3: Cross multiply
664,193.80x = 996,420.30 × 285,113.80 - Step 4: Simplify right side
664,193.80x = 284,093,178,130.14 - Step 5: Solve for x
x = 284,093,178,130.14/664,193.80 - Step 6: Final answer
x = 427,726.33
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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.