Finding the Fourth Proportional to 1,974,129.12, 2,724,304.32 and 1,068,708.96
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Solution
The fourth proportional to 1,974,129.12, 2,724,304.32 and 1,068,708.96 is: 1,474,821.69
Step by Step Solution
- Step 1: Write the proportion equation
1,974,129.12 : 2,724,304.32 = 1,068,708.96 : x - Step 2: Convert to fraction form
1,974,129.12/2,724,304.32 = 1,068,708.96/x - Step 3: Cross multiply
1,974,129.12x = 2,724,304.32 × 1,068,708.96 - Step 4: Simplify right side
1,974,129.12x = 2,911,488,436,550.71 - Step 5: Solve for x
x = 2,911,488,436,550.71/1,974,129.12 - Step 6: Final answer
x = 1,474,821.69
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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.