Finding the Fourth Proportional to 1,869,145.20, 2,579,496.30 and 1,053,383.26
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Solution
The fourth proportional to 1,869,145.20, 2,579,496.30 and 1,053,383.26 is: 1,453,711.69
Step by Step Solution
- Step 1: Write the proportion equation
1,869,145.20 : 2,579,496.30 = 1,053,383.26 : x - Step 2: Convert to fraction form
1,869,145.20/2,579,496.30 = 1,053,383.26/x - Step 3: Cross multiply
1,869,145.20x = 2,579,496.30 × 1,053,383.26 - Step 4: Simplify right side
1,869,145.20x = 2,717,198,221,651.94 - Step 5: Solve for x
x = 2,717,198,221,651.94/1,869,145.20 - Step 6: Final answer
x = 1,453,711.69
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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.