Finding the Fourth Proportional to 3,828,332.28, 5,282,907.84 and 2,109,175.32
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Solution
The fourth proportional to 3,828,332.28, 5,282,907.84 and 2,109,175.32 is: 2,910,556.87
Step by Step Solution
- Step 1: Write the proportion equation
3,828,332.28 : 5,282,907.84 = 2,109,175.32 : x - Step 2: Convert to fraction form
3,828,332.28/5,282,907.84 = 2,109,175.32/x - Step 3: Cross multiply
3,828,332.28x = 5,282,907.84 × 2,109,175.32 - Step 4: Simplify right side
3,828,332.28x = 11,142,578,833,962.51 - Step 5: Solve for x
x = 11,142,578,833,962.51/3,828,332.28 - Step 6: Final answer
x = 2,910,556.87
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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.