Finding the Fourth Proportional to 685,857.79, 946,471.36 and 379,933.23
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Solution
The fourth proportional to 685,857.79, 946,471.36 and 379,933.23 is: 524,300.99
Step by Step Solution
- Step 1: Write the proportion equation
685,857.79 : 946,471.36 = 379,933.23 : x - Step 2: Convert to fraction form
685,857.79/946,471.36 = 379,933.23/x - Step 3: Cross multiply
685,857.79x = 946,471.36 × 379,933.23 - Step 4: Simplify right side
685,857.79x = 359,595,920,907.29 - Step 5: Solve for x
x = 359,595,920,907.29/685,857.79 - Step 6: Final answer
x = 524,300.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.