Finding the Fourth Proportional to 1,138,304.32, 1,707,680.68 and 339,568.18
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Solution
The fourth proportional to 1,138,304.32, 1,707,680.68 and 339,568.18 is: 509,419.15
Step by Step Solution
- Step 1: Write the proportion equation
1,138,304.32 : 1,707,680.68 = 339,568.18 : x - Step 2: Convert to fraction form
1,138,304.32/1,707,680.68 = 339,568.18/x - Step 3: Cross multiply
1,138,304.32x = 1,707,680.68 × 339,568.18 - Step 4: Simplify right side
1,138,304.32x = 579,874,015,410.64 - Step 5: Solve for x
x = 579,874,015,410.64/1,138,304.32 - Step 6: Final answer
x = 509,419.15
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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.