Finding the Fourth Proportional to 1,965,201.81, 2,713,043.01 and 1,378,303.62
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Solution
The fourth proportional to 1,965,201.81, 2,713,043.01 and 1,378,303.62 is: 1,902,805.60
Step by Step Solution
- Step 1: Write the proportion equation
1,965,201.81 : 2,713,043.01 = 1,378,303.62 : x - Step 2: Convert to fraction form
1,965,201.81/2,713,043.01 = 1,378,303.62/x - Step 3: Cross multiply
1,965,201.81x = 2,713,043.01 × 1,378,303.62 - Step 4: Simplify right side
1,965,201.81x = 3,739,397,001,898.70 - Step 5: Solve for x
x = 3,739,397,001,898.70/1,965,201.81 - Step 6: Final answer
x = 1,902,805.60
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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.