Finding the Fourth Proportional to 2,116,269.76, 2,919,997.92 and 1,257,119.68
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Solution
The fourth proportional to 2,116,269.76, 2,919,997.92 and 1,257,119.68 is: 1,734,555.26
Step by Step Solution
- Step 1: Write the proportion equation
2,116,269.76 : 2,919,997.92 = 1,257,119.68 : x - Step 2: Convert to fraction form
2,116,269.76/2,919,997.92 = 1,257,119.68/x - Step 3: Cross multiply
2,116,269.76x = 2,919,997.92 × 1,257,119.68 - Step 4: Simplify right side
2,116,269.76x = 3,670,786,850,791.07 - Step 5: Solve for x
x = 3,670,786,850,791.07/2,116,269.76 - Step 6: Final answer
x = 1,734,555.26
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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.