Finding the Fourth Proportional to 2,620,578.84, 3,930,867.06 and 727,319.70
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Solution
The fourth proportional to 2,620,578.84, 3,930,867.06 and 727,319.70 is: 1,090,979.22
Step by Step Solution
- Step 1: Write the proportion equation
2,620,578.84 : 3,930,867.06 = 727,319.70 : x - Step 2: Convert to fraction form
2,620,578.84/3,930,867.06 = 727,319.70/x - Step 3: Cross multiply
2,620,578.84x = 3,930,867.06 × 727,319.70 - Step 4: Simplify right side
2,620,578.84x = 2,858,997,050,819.08 - Step 5: Solve for x
x = 2,858,997,050,819.08/2,620,578.84 - Step 6: Final answer
x = 1,090,979.22
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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.