Finding the Fourth Proportional to 1,723,162.19, 2,378,614.56 and 1,354,678.07
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Solution
The fourth proportional to 1,723,162.19, 2,378,614.56 and 1,354,678.07 is: 1,869,967.32
Step by Step Solution
- Step 1: Write the proportion equation
1,723,162.19 : 2,378,614.56 = 1,354,678.07 : x - Step 2: Convert to fraction form
1,723,162.19/2,378,614.56 = 1,354,678.07/x - Step 3: Cross multiply
1,723,162.19x = 2,378,614.56 × 1,354,678.07 - Step 4: Simplify right side
1,723,162.19x = 3,222,256,969,521.63 - Step 5: Solve for x
x = 3,222,256,969,521.63/1,723,162.19 - Step 6: Final answer
x = 1,869,967.32
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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.