Finding the Fourth Proportional to 509,361.24, 702,922.68 and 318,485.28
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Solution
The fourth proportional to 509,361.24, 702,922.68 and 318,485.28 is: 439,512.29
Step by Step Solution
- Step 1: Write the proportion equation
509,361.24 : 702,922.68 = 318,485.28 : x - Step 2: Convert to fraction form
509,361.24/702,922.68 = 318,485.28/x - Step 3: Cross multiply
509,361.24x = 702,922.68 × 318,485.28 - Step 4: Simplify right side
509,361.24x = 223,870,526,558.15 - Step 5: Solve for x
x = 223,870,526,558.15/509,361.24 - Step 6: Final answer
x = 439,512.29
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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.