Finding the Fourth Proportional to 2,979,845.64, 4,112,205.30 and 1,621,732.68
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Solution
The fourth proportional to 2,979,845.64, 4,112,205.30 and 1,621,732.68 is: 2,238,001.07
Step by Step Solution
- Step 1: Write the proportion equation
2,979,845.64 : 4,112,205.30 = 1,621,732.68 : x - Step 2: Convert to fraction form
2,979,845.64/4,112,205.30 = 1,621,732.68/x - Step 3: Cross multiply
2,979,845.64x = 4,112,205.30 × 1,621,732.68 - Step 4: Simplify right side
2,979,845.64x = 6,668,897,721,879.20 - Step 5: Solve for x
x = 6,668,897,721,879.20/2,979,845.64 - Step 6: Final answer
x = 2,238,001.07
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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.