Finding the Fourth Proportional to 492,329.79, 679,450.95 and 274,553.19
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Solution
The fourth proportional to 492,329.79, 679,450.95 and 274,553.19 is: 378,903.39
Step by Step Solution
- Step 1: Write the proportion equation
492,329.79 : 679,450.95 = 274,553.19 : x - Step 2: Convert to fraction form
492,329.79/679,450.95 = 274,553.19/x - Step 3: Cross multiply
492,329.79x = 679,450.95 × 274,553.19 - Step 4: Simplify right side
492,329.79x = 186,545,425,771.03 - Step 5: Solve for x
x = 186,545,425,771.03/492,329.79 - Step 6: Final answer
x = 378,903.39
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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.