Finding the Fourth Proportional to 999,118.62, 1,378,780.74 and 540,229.92
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Solution
The fourth proportional to 999,118.62, 1,378,780.74 and 540,229.92 is: 745,515.69
Step by Step Solution
- Step 1: Write the proportion equation
999,118.62 : 1,378,780.74 = 540,229.92 : x - Step 2: Convert to fraction form
999,118.62/1,378,780.74 = 540,229.92/x - Step 3: Cross multiply
999,118.62x = 1,378,780.74 × 540,229.92 - Step 4: Simplify right side
999,118.62x = 744,858,608,867.74 - Step 5: Solve for x
x = 744,858,608,867.74/999,118.62 - Step 6: Final answer
x = 745,515.69
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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.