Finding the Fourth Proportional to 1,965,284.88, 2,943,203.28 and 1,121,277.84
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Solution
The fourth proportional to 1,965,284.88, 2,943,203.28 and 1,121,277.84 is: 1,679,221.50
Step by Step Solution
- Step 1: Write the proportion equation
1,965,284.88 : 2,943,203.28 = 1,121,277.84 : x - Step 2: Convert to fraction form
1,965,284.88/2,943,203.28 = 1,121,277.84/x - Step 3: Cross multiply
1,965,284.88x = 2,943,203.28 × 1,121,277.84 - Step 4: Simplify right side
1,965,284.88x = 3,300,148,616,479.32 - Step 5: Solve for x
x = 3,300,148,616,479.32/1,965,284.88 - Step 6: Final answer
x = 1,679,221.50
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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.