Finding the Fourth Proportional to 2,138,320.68, 3,207,959.72 and 718,338.03
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Solution
The fourth proportional to 2,138,320.68, 3,207,959.72 and 718,338.03 is: 1,077,667.86
Step by Step Solution
- Step 1: Write the proportion equation
2,138,320.68 : 3,207,959.72 = 718,338.03 : x - Step 2: Convert to fraction form
2,138,320.68/3,207,959.72 = 718,338.03/x - Step 3: Cross multiply
2,138,320.68x = 3,207,959.72 × 718,338.03 - Step 4: Simplify right side
2,138,320.68x = 2,304,399,456,697.03 - Step 5: Solve for x
x = 2,304,399,456,697.03/2,138,320.68 - Step 6: Final answer
x = 1,077,667.86
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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.